This article is from the Lotus Cars FAQ, by email@example.com (Alan F. Perry) with numerous contributions by others.
Lotus designed the LT5 engine used in the Corvette ZR-1 in cooperation
with engineers at Chevrolet and Mercury Marine (a manufacturer of
marine (boat) engines). Lotus still has "ongoing design responsibilities"
for the engine.
According to Patrick Peal at Group Lotus, Lotus Engineering did not
do any suspension work on the Corvette.