Under the bonnet, the 1.8-litre engine in the standard R.S. 300 model now, as that moniker suggests, develops 300hp, the same as in the top 'Trophy' version. It remains the world's most powerful 1.8-litre unit, offering 390Nm of torque. Through the corners, you'll feel the difference between these two derivatives if you're fortunate enough to try them back-to-back; the 'R.S. 300' has the standard 'Sport' chassis, while the top 'Trophy' variant features the more track-orientated 'Cup' chassis. In both cases, a standard '4CONTROL' four-wheel steering helps corner turn-in and aims to ensure stability at high speeds and agility at low speeds. At high speeds, the front and rear wheels turn in the same direction, limited to a one degree angle for the rear wheels. At low speeds, the front and rear wheels turn in opposite directions up to a maximum angle of 2.7 degrees. The ride's surprisingly good too (for a hot hatch), thanks to all round hydraulic bump stops that also enable optimum control of tyre-ground contact. Customers must now have the Efficient Dual Clutch (EDC) auto gearbox and if you're quick with its paddleshifters, 62mph from rest takes 5.7s en route to a 158mph maximum (163mph in the Trophy version).
What else? Well in regular use, the Sport chassis provides easy sporty driving, whilst the Cup chassis offers greater, more focused performance for track and fast road progress. If you favour the 'Cup' set-up, you're the kind of buyer who'll probably be interested in the 'S. Monitor Expert' system that allows drivers to film their track sessions and overlay telemetry data to create augmented reality videos that can later be analysed on a provided 'R.S. Replay' website.