In 1987 at the GM proving ground in Mesa, AZ, there were 3 Reattas that were "modified".
One was supercharged and another one was a turbo installation.
The 3rd one was most interesting as it was a 3.8 turbo, and it had been converted to rear drive!
They displayed these at a local Buick event and all were running, driving vehicles.
The rear drive Reatta with a basic GN drivetrain was off-limits for test drives!
Knowing then the rear drive Regal was not going to be produced after 1987, we had hopes the turbo Reatta would survive, but Pontiac then took over the line of performance vehicles for GM.