Worked for a guy that had one in the 80s and use to drive it now and then. Was never impressed fit finish and quality was like a kit car. Performance was meh! my 5.0 Mustang would eat its lunch. Corvettes were much better.
The European carburetor and QV models were the best. We used to give Countach’s a hard time at Brands Hatch on the short circuit, getting past them occasionally. Would have been different on the long GP circuit but fantastic handling cars.