Hi Dave, sorry I'm late with this. The little red Lotus Ford Grand Prix car and the Mk1 Ford Escort look like the breakfast cereal kits from Mexico. These were presented on sprues like the 'R & L' Kits marketed by Petrol companies in the UK.

- Bimbo Bolidos kits.jpg (62.59 KiB) Viewed 579 times

- Lotus Ford.jpg (33.35 KiB) Viewed 579 times
They were available during the 1970's, so appear to have been made pretty close to when the original models (the Corgi Rockets Ford Escort), were being made. The Grand Prix car is one of 20 from that range, the Ford I am not sure, but other sports car subjects were also made.
Ghosthunter.