The E90 BMW M3 is something of a unicorn in the M3 lineage ... including one outrageous dealer visit that ended up costing nearly six times the original estimate. More: $70,000 Rolls-Royce ...

After two generations of straight-six-powered M3s, in 2007 BMW turned to a ... more E92 coupes than E90 saloons in the classifieds) help explain why you can now pick up an early, non-cat, 100,000 ...