The previous gen Camaro Z/28s are going for under 50k now with very low miles.
7.0liter LS7 from the old Z06 (505hp)
Carbon Ceramic brakes
305 square stance R compound tires
Spool valve dampers
Torsen LSD
Recaro Seats
Fairly limited production (only made for 2 years)
This thing MSRP'd for 75k when it came out. Seems like a steal these days if you can get past not being able to see out of it very well and the loud nature of the car.