I think the E9x 335i is one of the best enthusiast daily drivers available on the used market.
Fantastic handling/steering feel, no lag twin turbos, RWD, 6MT, nice interior, available as a coupe or sedan, easily mod-able.
Coming up on 75k in mine already and I absolutely love it. Makes the C300 feel like a Camry. Reliability problems really are overblown (do still have their problems). Don’t triple the boost and you’ll be fine. Parts are reasonable, and the aftermarket is fantastic.
For what I paid, I really can’t think of a better daily driver.