BMW’s M4 has been refreshed and the new Audi RS5 does the numbers to put the frighteners on a full-blown supercar, but can either see off the Mercedes-AMG C63 S? Over 3000 miles on road and track the evo supertest provided the answer.
The new RS5 is 60kg lighter with a 444bhp twin-turbocharged 2.9-litre V6 in the nose replacing the old V8. It’s mated to an eight-speed automatic gearbox and a faster-reacting four-wheel-drive system.
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