The C63 Coupe is as close to I a direct M3 rival as Merc has come in over 20 years. Has the BMW finally met its match? Matt Saunders reveals all. You really don't want to entertain any distractions on a derestricted German autobahn in ebbing and flowing early evening traffic. Particularly when you've got four-hundred-and-something horsepower to throw at the asphalt, four deeply conspicuous exhaust pipes jutting out from under your rear bumper, a posse of diesel-engined executive saloons jockeying to undertake you and 200 miles to cover before bed.
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