#5 is, as Autogids says, a Carlux Auwarter, but it dates from 1960 and is based on a T1 rather than the Transporter, which came rather later.
#12, the TVR Zante, was also known as the SM after Specialised Mouldings, who made the body. It was shown in 1971 reputedly with a Ford V6 engine but was never in fact a runner.
It was purchased some years ago from the factory by a TVR Car Club member who intended to restore it and make a runner, and in fact it was shown on the TVR Car Club stand at the Classic Car Show in Birmingham quite a few years ago, alongside my TVR Trident and a couple of other TVR prototypes! Unfortunately the member made no progress due to illness and this car was sold to, I believe, someone in Germany last year, who hopefully will make it into a runner.
#17 was known as 'The White Elephant' but was only ever a test-bed for a replacement V8 to take over from the venerable Rover engine, but no progress was made as I believe the Holden engine ceased production before the Rover engine!
It was run as a daily car by Peter Wheeler, owner of TVR, for a number of years.
It too has recently been bought by a TVR Car Club member who intends to restore it.