Here's the vent behind the wheel on the SL300 gull-wing of nearly 50 years ago...
And here's the same thing, re-interpreted for the 5th Generation SL....
Member
... (1970s) BMW 2800CS the other day. The side vents in that were copied almost without any change for the current E46 M3.
Senior Member
You'll find they started that retro theme on the R129 in 1989 with the vent behind the front wheel and have continued it into the R230.
