1966 Ford F-100 Custom Cab

1952 Chevrolet 3100 Panel Van

1976 Pontiac Astre Wagon

Looking at the exhaust, I suspect this car has been converted to a V6 or V8.
I took these pictures on two separate days, but it only shows in the shadows in #5.

1968 Ford LTD Convertible

1985 Pontiac Firebird

As far as I could tell, there is nothing that extends up into that bizarre hood bulge.

1970 GMC Jimmy

Triumph Spitfire Mark III

This is a confusing car. It is definitely not a "Triumph Spitfire 4 Mark 2", as the badge suggests. After a bit of Wikipedia & web searching, my guess is it's a mishmash, perhaps based on a Mark III from the 1960s. The seats suggest it is a much newer model, maybe a 1500, but the tail lights and body panels are from an older model.