BMW M4 CSL previewed ahead of reveal - PistonHeads

There's a Nurburgring lap time coming, too. A quick one, by all accounts...

Though some will tell you BMW M has lost its way, a few things remain sacred - the CSL badge is one of them. Its been used twice in half a century, reserved only for the most special of two-door, six… [+1913 chars]

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