1997 McLaren GTR Long-Tail

 
High Downforce configuration:

1234 lbs. @ 150 mph, with 561 lbs. of drag 
1776 lbs. @ 180 mph, with 807 lbs. of drag
2193 lbs. @ 200 mph, with 997 lbs. of drag

Lift-to-drag ratio: 2.2:1

Reference: Simon McBeath's Competition Car Downforce

ęCopyright 2004, Michael J. Fuller