Thursday, June 18th
Speed Day at the Rocky Mountain Mustang Roundup is all about getting behind the wheel and experiencing your Mustang the way it was meant to be driven. From tight, technical runs in the morning to wide-open laps in the afternoon, these events are designed to deliver real seat time in a safe, organized, and enthusiast-friendly environment.
Whether you’re new to performance driving or a seasoned track regular, there’s something here for you.
Morning Autocross (PPIR Infield)
Precision. Control. Confidence.
Our morning autocross event is the perfect introduction to performance driving—or a chance for experienced drivers to sharpen their skills. Set up on a closed course using cones, autocross emphasizes handling, braking, and driver input rather than raw speed. Each run challenges you to read the course, react quickly, and find the fastest, cleanest line.
Autocross is welcoming, low-pressure, and approachable for a wide range of drivers and vehicles. You’ll get multiple runs, clear instruction, and the opportunity to learn how your Mustang behaves near its limits—all without the commitment or intensity of full track driving. It’s fast-paced, addictive, and one of the most fun ways to compete against yourself and the clock.
Why participate?
- Improve car control and driver confidence
- Safe, controlled environment
- Ideal for first-time performance drivers
- A fun, skill-focused challenge for all Mustang builds
This event takes place on the PPIR Infield with plenty of space between cars and barricades or hazards. Cars go one at a time. Check out this helpful and in-depth article on what to expect at an autocross.
Traditionally, autocross is a volunteer-driven sport. This year, volunteering will be welcomed, but not required for participation.
Afternoon Track Day (PPIR Roval)
Real Speed. Real Track. Real Mustang Performance.
In the afternoon, we turn things up with our track day event. This is your chance to experience sustained laps on a true road course, exploring higher speeds, longer straights, and flowing corners in a professionally managed setting. Drivers are grouped by experience level to ensure a smooth, enjoyable day for everyone on track.
Whether you’re chasing clean laps, dialing in your car, or simply enjoying the thrill of open-track driving, this event offers a rare opportunity to fully appreciate your Mustang’s performance capabilities. With generous track time and a supportive atmosphere, it’s an unforgettable experience for drivers who want more than a quick taste of speed.
Why participate?
- Extended sessions on a real road course
- Driver groupings for comfort and safety
- A chance to experience what your Mustang was built to do
- One of the most rewarding events of the entire weekend
Driving Groups
- Green – Novice, little to no experience in a track environment
- Blue – Intermediate, some experience on a track, but none at PPIR
- Red – Advanced, experienced on a track, familiar with PPIR.
Spectators are welcome and encouraged to come check out the racing! We will have bleachers for easy viewing, and many of the drivers welcome ride-alongs in their cars. Spectating is free!
2026 Autocross Course Map & Details
You can sign up to drive more than 1 registered vehicle as long as the 2nd registered vehicle is not in the same class as the 1st vehicle. Doing this will allow the driver to only be eligible for a trophy when driving the 1st registered vehicle.
All that have registered to participate in the Autocross will need to check in with registration and pick up their packets. Included in the packets will be your car number that will need to be placed on the vehicle running in the Autocross.
The Autocross will be held on the PPIR infield. The limit is 150 drivers. Each driver will complete a minimum of three timed runs. SCCA safety regulations will be enforced. Helmets will be required on the course for every driver and passenger (Snell 2000 or newer).
Autocross participants must bring their AX Confirmations (to be emailed May 2026) and turn in their completed Technical Inspection Form before participating in the AX.
There will be no additional or on-site Tech Inspections to participate in the Autocross, but all AX participants will need to download and fill out the Autocross Technical Inspection Form. Those that wish to walk the course will be allowed to do so up to start of the Driver’s Meeting (9am) at the West Lot. Autocross ACE awards will be presented at noon during the Show n’ Shine on Bennett Avenue.
Autocross Rules & Requirements
- The autocross and track day will be held on the infield at PPIR.
- The limit is 150 drivers. There will not be a waitlist for the autocross.
- Each driver will complete a minimum of three timed runs.
- Autocross trophies will be awarded Friday during the social event at the Cripple Creek Rec Center.
- SCCA safety regulations will be enforced.
- Helmets will be required on the track for every driver and passenger (Snell 2000 or newer).
- Only two drivers are allowed per car.
- Autocross participants must bring AX Confirmations (to be mailed May 2026) and self technical inspection sheet before participating in the AX.
- Cars will be run together in the same classes.
- Male/female two driver cars will be split between sessions. Same sex two driver cars in the same class are in the same session.
Autocross Event Classifications
Stock Classes (ES, ESL, FS, FSL, LS, LSL): Mustang as produced with options available year of manufacture. One modification allowed over stock to suspension or gear ratio. Suspension must retain original configuration and ride height. Up to two modifications allowed to engine over stock.
No power adders (eco boost excepted). No autocross, road race, or drag race tires with wear indicators of less than 200 allowed. Allowed modifications are as follows:
Suspension – higher rate springs, sway bars, wheels, and traction bars. One modification only.
Shock absorbers are not considered a modification. No modification is allowed that does not adhere to the original suspension design and mounting points. Devices that allow for suspension alignment tuning are allowed. Upgraded brake system and steering systems that were not available for the model year are not allowed.
Gear ratio – any gear ratio that was available during the model years covered by the class.
Engine – intake manifold, carburetor, throttle body, air cleaner, exhaust headers, and chip upgrade. Two modifications only.
Transmission – Transmission swaps/replacements are allowed only for transmissions that were available during the model year covered by the class.
Street Prepared Classes (ESP, ESPL, FSP, FSPL, LSP, LSPL): Additional modifications allowed over stock. Car must be titled, have current license plates, be street driven. No major lightening is allowed. Car must have a full interior.
The following models due to their superiority over the standard offerings of their model year are considered as Street Prepared cars:
- 93-01 Cobra (non-supercharged)
- Bullitt, 03 –04
- 21-22 Mach 1
- 2012-13 Boss 302
- 2011 – 2024 GT
- 06 – 25 Shelby GT/GTH/GT350 (non-supercharged)
- Other non-supercharged Shelby, Roush & Saleen models
Suspension must retain original configuration and mounting points. (lowering springs and early Shelby A-arm modification are allowed). No power adders (turbochargers/superchargers) are allowed unless stated herein. Original supercharged 65-68 Shelby cars are allowed in ESP & ESPL. Original turbocharged 4 cylinder cars are allowed in FSP and FSPL. Engine replacement swaps are allowed for like type engines.
No autocross, road race, or drag race tires with wear indicators of less than 200 allowed. Allowed modifications are as follows:
Suspension – higher rate springs, sway bars, lowering kits, wheels, and traction bars. Shock absorbers are not considered a modification. No modification is allowed that does not adhere to the original suspension design and mounting points. Devices that allow for suspension alignment tuning are allowed. Upgraded brake system and steering systems that were not available for the model year are not allowed.
Gear ratio – any gear ratio that was available during the model years covered by the class.
Engine – intake manifold, carburetor, throttle body, air cleaner, heads, camshaft, lifters, rocker arms, compression ratio, stroker kits, pistons, oil pumps, exhaust headers, and chip upgrade.
Ignition system, radiator, water pump, and alternator upgrades are not considered a modification.
Transmission – Transmission swaps/replacements are allowed.
Street Modified Class (ESM, ESML, FSM, FSML, LSM, LSML): Any street legal modifications allowed over street prepared rules. Car must have a full interior. Power adders (turbochargers/superchargers) allowed.
The following supercharged models are classified as Street Modified cars:
- 03 – 04 Cobra, Cobra R
- 07-25 GT500 & GT500KR Shelby
- GT 350SC & 350R Shelby
- Supercharged Roush and Saleen models
Car must be titled, have current license plates and be street driven. No autocross, road race, or drag race tires with wear indicators of less than 200 allowed.
Unlimited Class (CP, CPL): Mustangs with Unlimited modifications and tire selection. (if your car has tires with a tread rating of less than 200 you will be in this class).
Ford GT/Cobra Class (CC, CCL): Any original Shelby or Ford powered replica Shelby Cobra. Any Ford GT.
Non-Mustang Class (NM, NML): Any FOMOCO non-Mustang (Python, Cougar, T-bird, etc.) or FOMOCO powered vehicle also MACH E and other electric/hybrid vehicles.
Classification notes:
- Power adders are defined as superchargers and turbochargers.
- If a vehicle has a NOS system the bottle must be removed from the car prior to the autocross.
- All classes except Unlimited must use DOT tires with a tread wear rating of 200 or greater. Autocross, drag or race tires are only allowed in the unlimited class.
- Helmets of a Snell 2000 or later rating are required of all drivers and passengers. (Helmets will be inspected. Damaged helmets will not be permitted.)
- Drivers and passengers need to be a minimum age of 18 years of age with a valid driver’s license.
- All cars shall be required to have seat belts, be in good working order, and to pass a technical inspection prior to the event sessions.
- Only two drivers are allowed per car. No driver may drive more than one car during the event.
- SCCA rules and regulations other than noted above will apply. Final car classification will be by the discretion of the event stewards.
- If modifications are made to your vehicle or drivers after your registration, you must inform the RMMR registration to ensure your class didn’t change, vehicles classed wrong may result in DNF times. Please notify us by June 1 of any changes to your vehicle or drivers to ensure you are classed properly for all your runs to count.
Track Day Rules & Requirements
This “Track Day” event is not a race. Wheel to wheel competition will not be condoned. Courtesy and common sense must prevail at all times while driving on the track. All drivers will be required to operate their vehicles in a safe and controlled manner, as defined by the Event Steward. Erratic or reckless driving is strictly prohibited, and may result in expulsion from the event. All vehicles permitted access to the track must be in good and safe condition. Fire extinguishers are recommended but are no longer required in street cars.
The owner or driver of the vehicle registered for this event will be responsible for a technical inspection in conformance with the Technical Inspection Form. This technical inspection is to be performed by the owner, the driver, or a qualified mechanic prior to arrival at the track and brought to PPIR on the day of the event.
It is the responsibility of the owner of the vehicle to verify that all operating, safety and equipment requirements indicated on the inspection form have been satisfied. The vehicle will be subjected to an additional cursory inspection by a designated technical inspector at the event for full compliance prior to being granted access to the track. Loaner helmets will be available and passengers will not be allowed in the 1st session of each run group, but will be allowed in sessions 2 & 3.
Drivers and passengers must wear a helmet when on the track. Helmets of a Snell 2000 or later rating are required of all drivers and passengers. (Helmets will be inspected. Damaged helmets will not be permitted.) RMMR has a limited number of loaner helmets available to borrow. The use of head socks will be required for anyone borrowing one of the RMMR loaner helmets. The RMMR will have head socks available for RMMR participants that need to use our loaner helmets.
For those drivers who may be concerned about exposure to possible damage to your collector or exotic (high value) cars participating in a “high performance driving event”, normally excluded from your typical insurance coverage, HPDE insurance is available to individual track participants through LOCKTON AFFINITY, LLC. For more information, contact Locktonmotorsports.com or contact Fredric A. Knuth, Lockton Affinity, at 913-652-7529, or fknuth@locktonaffinity.com.
Garage Space
Event participants can rent a garage at PPIR for our Thursday event. There are a limited number of garage spaces available. Rentals will be on a first-come first-served basis. To reserve a garage space, participants will need to contact PPIR (719 382-7223) directly to secure their reservation.