Second generation Corvair Monzas were beasts. GM re-engineered the rear suspension geometry and the Monza package added better everything. Some of these were raced with success. Traco Engineering in Culver City (I think) built the best ones, along with some killer 302s for Trans-Am Camaros of the day. (The Penske/Donohue Camaro ran Traco 302s.) If you knew how to drive a 911 Porsche of that era, you knew how to drive a Monza. Just had to respect all that mass behind the rear axle. Trail braking was not a recommended procedure when slowing into a turn on either of those cars unless you like going ass-backwards into the weeds.