Question: what is the difference between cooper s and jcw?
Answer: That engine might seem similar to the one used in the Cooper S, but in the latter, it produces “just” 184bhp and belies the extensive performance surgery the JCW has undergone in the form of a lightened crankshaft and reinforced pistons. ... The JCW does the century sprint in 6.3 seconds, the Cooper S in 7.2 seconds.