I still frequent SupraForums. As I've said many times before, these guys are car crazy..many owning several high end cars, and others buying cars, modding them, then selling them. Here's a cool sampling of some of the neat (and custom) cars currently for sale.
Single Turbo, 450HP Lexus SC250 (5 speed manual)

300ZX, with Supra power (2JZ-GTE), 380RWHP

2006 Z06, LeMans Blue,HRE wheels

1995 M3

Twin Turbo Z06, 786HP

BMW 3 Series, 450HP, Supra power

2002 M3, Works VS wheels

1999 2.5RS swapped with a 2006 STI powertrain, 425 AWHP

1992 C5, 45,000 original miles

2008 335i, 414RWHP

Porsche 930 with stroked LS2 V8

1994 RX-7 with LS2 V8, 400RWHP

1975 Datsun 280Z

1994 RX-7, 500RWHP (engine by RX-7 Specialties of Canada)

578 HP WRX STi

Noble M12 GTO

"Nera" Lambo (world's fastest) Video:
http://www.youtube.com/watch?v=8BwIniaHIUE&feature=player_embedded#!
And the list goes on and on...