From boxer twins and inline sixes to sonorous V12s and even diesels, BMW has built numerous iconic engines throughout its history. For many car enthusiasts, though, it's the Bavarian automaker's S85 ...

Featuring an 8,000-rpm redline, a perfectly balanced chassis, and a distinctive exhaust roar, the E46 M3 is often considered the ultimate M3.

plus the fitment of some new Powerflex wishbone bushes up front ... cutter SUVs with a silly old BMW. And I have a rust-free, Japan Red, six-cylinder, manual E46 for not much money at all.

In the case of the E46 and E92 generations you could even hedge your bets and have one of each… The E46 M3 arrived in 2000 and was a return to form for BMW M ... work the front tyres are ...