Krell/BMW model designations?

I think the owner of Krell is a BWM fan. I read somewhere that he owns a M5.

Is an M5 just like the M3, but only in the 5 series?

The M version of a BMW is always the high-performance version of that same series (M3, M5, M6). The M3 is a 3 series with upgraded suspension, engine, brakes, transmission, etc.

The M5 (2000-2003) has a 400 hp V8 engine and does 0-60 in about 4.7 seconds. That's Ferrari fast! Not bad for a 4 door luxury sedan!

Doug
(BMW fanatic)