Engine options, speed, acceleration and refinement

If you’re looking for variety here, you’re in the wrong place. The Radical SR3 can be had with the aforementioned 245bhp Ford Ecoboost engine and six-speed sequential transmission. And that’s it. 

As you’d hope for an engine whose internals are unchanged since Ford fitted them, the SR3 SL’s motor starts easily on the button and settles to a notably restrained idle.

Retardation and pedal feel are good in the dry. In the wet it’s a different story

For those used to other Radicals, the lack of chatter and zing will come as a surprise, but it is by no means an unpleasant one. Especially if you’re going to use the SL on the road, as you ought to. Engaging a gear still emits a clonk, but the clutch is easy.

Throttle response for a turbocharged engine is good; inevitably it’s less sharp than a normally aspirated engine, but if you had 2.0 litres and 300bhp without forced induction you’d be paying a bigger price at low revs. 

If you’re asking a lot of the engine then you can forget about using the clutch and revel in upshifts that are pulled through seemingly as quickly as any twin-clutch transmission. Clutchless downshifts are on the cards if you’re completely off the throttle too.

In ideal conditions Radical claims that the SR3 SL can hit 60mph from rest in 3.4sec and 100mph in 8.4sec. Top speed, if you've the room, is a substantial 161mph.

Despite the conditions, traction is good, and although there are no driving aids per se, turbo boost and torque are limited in first and second gear. There’s no ABS, either, but retardation and pedal feel are good in the dry. In the wet it’s a different story; retardation is okay, but it’s hard to tell when a wheel is locking.


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