The early 1990s Formula 1 era is remembered for a reason. High-revving naturally aspirated engines, manual gearboxes, minimal driver aids, and cars that looked simple but demanded real precision. RSS’s Formula RSS 1990 V10 is built to capture that exact feeling, using the 1990 McLaren MP4/5B as its inspiration.
This car is part of RSS’s Formula 1990 pack, sold alongside the 1990 V12. The point of the pair is the contrast: two legendary approaches from the same era, one centered around the V10 McLaren concept and the other around the V12 Ferrari-inspired concept.
Fast, loud, demanding and rewarding, and one of the best historic open-wheel options in Assetto Corsa when pedal work and manual shifting click.
Classic F1 fans who love manual shifting
Drivers who want varied liveries and forgiving kerbs
✓ Hands-on tested by OC Racing · ✓ Updated October 2026
The RSS V10 is based on the McLaren MP4/5B, the 1990 evolution of McLaren’s earlier MP4/5 design. In 1990 it ran Honda’s RA100E 3.5L V10 and a manual 6-speed gearbox, and it’s one of the most iconic silhouettes of that period.
The broader era context matters too. After turbos were banned, naturally aspirated engines became the rule, and the grid became a mix of philosophies. Ferrari leaned into V12 power, while McLaren-Honda fought back with a high-revving V10 platform. That V10 vs V12 contrast is one of the reasons 1990 is still viewed as a defining season for engine character and driving style.
Real-world numbers vary by source and development stage, but the general shape of this car is consistent:
No special install quirks stood out here.
This is where RSS stays consistent. The exterior looks excellent, including small touches like tire texture and the overall proportions that instantly read as early 90s F1. The cockpit is also spot-on for the era: not much stuff, but the details that do exist are modeled cleanly, and every lever and switch reads clearly. No obvious clipping or visual bugs showed up.
The sound is a highlight. RSS describes the car as high-revving and loud, and that’s exactly the vibe it delivers. It captures that classic V10 sing, especially when the car is being driven the way it’s meant to be driven.
One nitpick: there’s a sputtering, limiter-like character that seems to begin before redline, even though the engine will still rev a bit further. It doesn’t ruin the experience, but it’s noticeable once it’s heard.
The Formula RSS 1990 V10 is fast, responsive, and surprisingly drivable for the pace it carries. The challenge isn’t surviving it, it’s extracting a clean lap while managing a manual gearbox and old-school behavior.
The takeaway: buy it for pedal work and manual shifting, not for cruising over kerbs.
Manual driving adds difficulty in all the places it should. Rear lockups can happen under braking if inputs are sloppy, and shifts can create wheelspin or instability if throttle isn’t managed carefully. The car rewards proper pedal work more than steering technique alone.
Kerb behavior is the weak point. Anything other than flat kerbs tends to upset the car excessively and can trigger unwanted sliding. The fastest lines become the cleanest lines.
The car includes qualifying special tires that fall off quickly, but they are noticeably faster than the next closest compound. That creates a very short peak window, which fits the era fantasy well and also makes hotlapping more intense.
Worth knowing: qualifying tires are faster but fall off quickly, so the peak lap window is short.
Tested under OC Racing’s fixed benchmark (Assen Autosport layout with the middle chicane, stock setup, highest grip tire, fuel for 5 laps, 40 timed laps, invalid laps count, resets do not).
Best valid lap: 1:16.303
Hard but doable. The speed is huge and the manual gearbox raises the workload, but the car remains controllable once the rhythm clicks.
Most of the depth here is in the mechanical setup, not modern systems:
At £4.19, it’s not overpriced, but it is a niche purchase. It’s unlikely to become a major league staple compared to modern formula content, and it doesn’t have headline features like a current-era hybrid mod. The value is in the driving challenge, the era accuracy, and the sound.
Formula RSS 1990 V10 is a racing legend in the best way: fast, loud, demanding, and rewarding. It doesn’t rely on gimmicks or modern systems. It relies on the driver doing the work, especially with pedal control and manual shifting. For anyone who wants a classic open-wheel challenge that feels fresh and properly high-effort, this is one of the best options in Assetto Corsa’s historic category.
What mod should be reviewed next?
Drop suggestions in the comments, including the class so it can be added to the Lap Time Challenge leaderboard.
Fast, loud, demanding and rewarding, and one of the best historic open-wheel options in Assetto Corsa.
Ideal buyer: Classic F1 fans who love manual shifting and proper pedal work.
Major drawback: Kerbs upset the car excessively and livery variety is limited to one design in 6 colours.
Bottom line: At £4.19 the value is in the driving challenge, the era accuracy and the sound.
Sim racing hardware reviewer and creator. Every review on this site is hands-on tested across direct-drive wheelbases, pedals, cockpits, motion systems and accessories before a word is published.
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OC Racing Lap Time Challenge at Assen: The Benchmark We’re Using for Every Assetto Corsa Mod Review - OC Racing says:
[…] Formula RSS 1990 V10 (McLaren MP4/5B) – 1:16.303 […]
Bryce Rodriguez says:
Awesome! Do a review on the V12!