From the people that gave us the SR2 and the SRZero comes a new track-day and road-focused roadster that’s expected to be the company’s flagship model of 2011. Radical Motorsports recently introduced their new bad boy, the SR3 SL, at the Autosport International Show in Birmingham, England.

According to Radical Motorsports, the SR3 SL is expected to be their most advanced supercar yet. Certainly, there’s a lot to like about this British beast. It’s got 300 horsepower inside of it, making for a scintillating open-top joy ride. It’s lightweight structure - overall weight is just 675 kg - allows it to to quick and agile, even for Radical’s standards.

And if you just happen to have an insatiable lust for power and speed, Radical Motorsports is offering a Race Pack for the SR3 SL that comes with added features, including an engine calibration map selection that provides ‘road’, ‘wet’, and ‘racetrack’ suitable maps, a racing bi-plane rear wing, racing tire options, and an FIA-approved fuel cell.

Suffice to say, Radical took the time to load up on the SR3 SL, much to our approval.

UPDATE 09/15/11:The Radical SR3 SL has been around for some time now, but it was only this week when it made its public debut at the Frankfurt Motor Show. Suffice to say, the car looks hella nice up close and personal, too. Check out the new images in the gallery provided!

Details on the Radical SR3 SL after the jump.

Exterior and Interior

2011 Radical SR3 SL High Resolution Exterior
- image 417217

Styled and built to look like a true-to-its-roots racer despite being a street-legal vehicle, the SR3 SL weighs in at just 675kg – and that comes with full body aerodynamics, including the same core chassis and a compliant suspension. The new Radical sports car also has an F1-style paddle-shift gear change with an auto blipper, a fly-by-wire throttle, and a set of street-ready wheels and tires.


2011 Radical SR3 SL High Resolution Exterior
- image 417230

Like any modern-day track racer, the Radical SR3 SL has loads of power hiding underneath that racer exterior. It’s powered by a 2.0-liter Ford EcoBoost four-cylinder engine that produces 247 horsepower with an additional 53 ponies tacked to it courtesy of Life Racing, rounding up the total output of the SR3 SL to 300 horsepower and 340 lb/ft of torque. The SR3 SL hits a 0-60 mph time of just three seconds with a top speed of 165 mph. The newest Radical to come out of the block also has a brand-new turbocharged unit with Twin-Independent Variable Cam Timing and state-of-the-art, high-pressure Direct Injection, transmitting power through a six-speed sequential gearbox.

Radical is also offering a Race Pack for the SR3 SL that comes with added features, including an engine calibration map selection that provides ‘road’, ‘wet’, and ‘racetrack’ suitable maps, a racing bi-plane rear wing, racing tire options, and an FIA-approved fuel cell.

Then there’s the matter of the European Small Series Type Approval, which the SR2 SL was given, making a registered racer in a lot of European countries.


2011 Radical SR3 SL High Resolution Exterior
- image 417221

The Radical SR3 SL has been given a price tag of £67,750, or about $107,000 based on current exchange rates. It’s not cheap by any account, but the price of owning one of these vehicles should justify the exorbitant price tag attached to it.


2011 Radical SR3 SL High Resolution Exterior
- image 417218

The Autosport International Show witnessed the unveiling of another vehicle that could give the Radical SR3 SL a serious run for its money.

That vehicle is the Caterham SP/300.R, which comes with a 2.0-liter Ford Duratec Supercharged engine that delivers 301 horsepower at 7,500 RPM with a maximum torque of 290 Nm at 7,500 RPM and a Lola Formula 3 derived gearbox mounted rear suspension system. According to Caterham, the SP/300.R can run north-to-60 in just 2.8 seconds with a top speed of 180mph.

Compare that to the numbers posted by the SR3 SL and you’ve got two racers that should end up staring each other down in the near future.

2011 Radical SR3 SL High Resolution Exterior
- image 417214
  • Leave it
    • SP/300.R has a marginal numbers edge
    • North of six digits price tag will punch a hole in our wallets
    • Limited stock will hurt our chances of getting one
What do you think?
Show Comments


  (488) posted on 11.24.2011

This Radical SR3 SL is absolutely looks so aggressive on its platform, which is very noticeable on it. However, I hope that they would justify the angst that it had by using an impressive and powerful engine output.

  (619) posted on 10.24.2011

I’m impressed with the platform of this race car. It is so unique and very aggressive, and I love the body paint of it. smiley If I gave any chance to drive this one, I will surely drool over it.

  (300) posted on 09.23.2011

I like the style of this car. Is this F1 car? I don’t if this one is F1 car. BTW, I want to watch the video performance of this car. The Concept of this car is great and design is great also specially the white color.

  (473) posted on 09.20.2011

Wow! very great car. I like the white color. The combination of the color of the is great, and the driver has a color white helmet another combination color for the car.

  (474) posted on 09.19.2011

Light weight fast car. This one is looks great and the performance also is great. I want to watch this car some video to see the great performance of this car.

  (372) posted on 09.19.2011

This is a perfect sports car I’ve seen in my life. I love cars, and I really appreciate this kind of amazing sports car ever.

  (570) posted on 08.15.2011

Well, compare to other radical race cars, I can say that it is the fastest version of them. It is a light-weight car, thus it can create an impressive performance. On the other hand, the only problem on this one is the pricing. 

  (364) posted on 03.17.2011

Hmm. I don’t get the point of this car. Just like the Ariel and KTM, for sure they are for thrilled-seeking purpose only. And aside from that its one-seater , so meaning you will enjoy the thrill all by yourself!

  (387) posted on 03.14.2011

This one actually looks good. But I wonder how it would fare with the competition. As it is, there are a lot of racers that would match this one easily.

  (559) posted on 02.13.2011

I do like the Radical, nice to see it has a car engine now.

  (683) posted on 02.13.2011

Not really a rival to the Caterham and Ariel Atom. Both the Ariel and Caterham are street legal cars to begin with, this is just a marginal race car made to be street legal. In short, you would look just really out of place driving it on the street while people around you cant help but to point out "Who is driving that...?"

  (553) posted on 02.9.2011

The news here are not the road legal capability. Radical makes road legal SR3 from the debut of the model. The news here are the engine. Till now SR3 was powered by 1.3l or 1.5l Suzuki Hayabusa engines. And if you ask me I still prefer 1.5 turbocharged Busa engine.

  (410) posted on 01.27.2011

With European Small Series Type Approval, the SR3 SL can be road registered in any EU country, and many more.

  (570) posted on 01.27.2011

It has borrowed the 2.0-liter turbocharged Ford EcoBoost engine which will be used in the Focus ST later on this year.

  (702) posted on 01.19.2011

Radical will also offer a Race Pack options package on the SR3 SL which includes an engine calibration selection for various conditions – ‘road’, ‘wet’ and ‘racetrack’, an FIA-qualified fuel cell, a bi-plane rear wing and racing tyre options.

  (807) posted on 01.19.2011

The SR3 SL is a track-going racer that comes close to a Le Mans experience but one that is also road-legal in EU countries and is Euro 5 compliant.

  (151) posted on 01.18.2011

Why so few images? Looking forward for the guys at TG to put their hands on it and ride it until the gas tank empties smiley

  (111) posted on 01.18.2011

Strange painted, but 300 HP at 675 Kg, that’s better power / weight ratio than most ferraris smiley

  (309) posted on 01.17.2011

Optimized for the growing trackday and corporate/race school market, the SR3 SL is Radical’s most advanced sportscar ever, powered by a 2,000cc Ford-RPE Radical Performance Engines EcoBoost engine developing 300bhp as standard.

  (291) posted on 01.17.2011

great car, but not much. why? because you can only use this on track and not on the normal road. for sure your pocket will be in pain if this thing touches the ground with gravel or humps.

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