just bought my ultimate DD after wanting one since I was a kid, 06 E46 M3 SMG.
Even after 6 years (E46 M3 = 2001-2006) I think it is still the 'total package' when it comes to a sporty daily driver. Sure a wrx or sti with bolt ons is faster, but uhhh... well just look at the sexy beast in my sig
If I wanted to settle for a less practical DD, I think it would be hard to go for anything but the C6 Z06.... Ridiculously fast, light, looks great...the "poor mans supercar".
When it comes time to get a 4 door, ultimate DD will be M5 or S4... Would say the RS4 but the front end of that car is ugly as sin.
"Dream" cars include late 80's red Countach, almost any Ferrari, and the Shelby 427 Cobra (someday going to build one).