Radical SR1 XXR 2026 Review, Specs, Price and Mileage (Brochure)
This guide explores the Radical SR1 XXR 2026, delivering an in-depth look at its design, performance, specifications, pricing, and fuel efficiency. Discover key features, engine details, track-focused capabilities, and overall driving experience to help enthusiasts and buyers understand what makes this lightweight race car a thrilling and competitive choice today.
Pricing
The base price for a new 2026 Radical SR1 XXR is approximately £65,460.
What’s New for the Radical SR1 XXR 2026
The Radical SR1 XXR 2026 brings several key updates focused on performance, durability, and driver experience. It features a redesigned aerodynamic body, including an LMP-inspired rear fin, improving stability and downforce on track. A major highlight is the new Generation 5 1340cc engine, offering better reliability, quicker warm-up, and stronger performance. The chassis and components have been refined for enhanced durability and reduced weight in critical areas. Updated electronics, including improved data logging and engine management systems, add precision for drivers. Additionally, gearbox enhancements and paddle-shift technology deliver smoother, faster shifts. Overall, the 2026 SR1 XXR evolves into a more advanced, race-ready machine while maintaining its role as an accessible entry-level track car.
Colour Availability of the Radical SR1 XXR 2026
The Radical SR1 XXR (including models delivered for the 2026 season) is available in 7 standard bodywork colours. Additional bespoke colours and personalised vinyl graphics packages are available through the Radical factory and dealer network.
- Brilliant White
- Future Grey
- Spice Yellow
- Gulf Blue
- Stealth Black
- Rosso Red
- Speed Green
Specifications
Exterior Dimensions
| Specification | Measurement |
|---|---|
| Length | 152.0 in |
| Width | 61.4 in |
| Height | 40.2 in |
| Wheelbase | 92.3 in |
| Weight | 510 kg |
Interior Dimensions
| Specification | Details |
|---|---|
| Seating Capacity | 2-Seater (Single-seat option available) |
| Cabin Layout | Race-focused, compact cockpit |
| Seat Type | Moulded race seat insert |
Exterior and Interior features
| Category | Features |
|---|---|
| Exterior | LMP-inspired bodywork, high-downforce aero, rear wing, front splitter, diffuser |
| Lighting | LED race lighting, central rain light |
| Mirrors | Carbon composite racing mirrors |
| Interior | Quick-release steering wheel, wind deflector |
| Safety | FIA-compliant safety cell, fire extinguisher system, 6-point harness |
Infotainment
| Feature | Details |
|---|---|
| Display | AIM MXS digital display |
| Functions | Gear indicator, shift lights, data logging |
| Connectivity | Race telemetry focused (no traditional infotainment) |
Steering and Brake
| Component | Specification |
|---|---|
| Steering | Quick-release racing steering wheel |
| Brake System | 4-piston calipers (front & rear) |
| Disc Size | 240mm × 25mm ventilated discs |
| Brake Adjustments | Dash-mounted brake bias adjuster |
Tires and Wheels
| Component | Specification |
|---|---|
| Front Wheels | 7″ × 13″ cast aluminum |
| Rear Wheels | 9″ × 13″ cast aluminum |
| Tire Type | Semi-slick & wet racing tires |
| Recommended Brand | Hankook |
Engine
| Specification | Details |
|---|---|
| Engine Type | Gen 5 RPE inline-4 |
| Displacement | 1340cc |
| Valvetrain | DOHC, 16-valve |
| Power Output | 188 bhp |
| Cooling | Liquid-cooled with dry sump |
| Fuel System | Electronic Drive-By-Wire |
| Exhaust | High-flow racing exhaust |
Drivetrain
| Component | Specification |
|---|---|
| Transmission | 6-speed sequential gearbox |
| Gear Shift | Paddle shift with auto-blipper |
| Drive Type | Rear-wheel drive |
| Differential | Limited-slip differential (Quaife) |
| Engine Layout | Mid-engine |
Fuel and MPG
| Specification | Details |
|---|---|
| Fuel Tank Capacity | 54 Liters |
| Consumption | ~1 gallon per 10 minutes (track use) |
| Rate | 0.66–1.0 L/min |
| Estimated MPG (Theoretical) | 26 MPG (City) / 34 MPG (Highway) |
Battery and Range
| Specification | Details |
|---|---|
| Battery | Not applicable |
| Driving Range | Not applicable (race car) |
Frequently Asked Questions
What engine does the Radical SR1 XXR 2026 use?
The Radical SR1 XXR 2026 is powered by the Generation 5 RPE 1.3‑litre 1340cc, liquid‑cooled racing engine developed specifically for Radical to improve performance, reliability and durability.
What are the key performance specs of the Radical SR1 XXR 2026?
The Radical SR1 XXR 2026 produces around 188 bhp, weighs approximately 510 kg, and posts competitive lap times (e.g., ~2:11 at Silverstone), showcasing its high power‑to‑weight track performance.
Is the Radical SR1 XXR 2026 suitable for beginners?
Yes — the Radical SR1 XXR 2026 is considered a great entry point for track racing and is engineered to be more accessible than higher‑tier Radical models while still delivering serious performance.
What type of transmission does the Radical SR1 XXR 2026 have?
The Radical SR1 XXR 2026 comes with a six‑speed sequential transmission (often paddle‑shift), optimised for quick shifts and racing conditions.
