The Aquarium Car. I had one for a day while my car was worked on by the dealer. Smoke started pouring out of the heater vents before even getting it off of the lot. A friend had one a few years after that. They ultimately ended up just abandoning it on the side of the road when it broke down.
Pacers had longer passenger side doors than driver's side.
My favorite car introduced in the 70s that advertised a wider interior was the Triumph TR-7. Wider than a Corvette inside. Unfortunately they apparently disintegrate. I haven't seen one for years (or a Triumph Spitfire or TR-6, MGBs or MG Midgets). Fiat X19s were similar to the TR-7s style. Rarely see Datsun 240, 260, or 280 Zs either. Mercury Capris were another fun ride from the 1970s. The Hurst Olds Cutlass Supreme was a sweet domestic, pre-unleaded fuel ride.
I really can't tell most $7,500 cars from $50,000 cars that are on the road nowadays.