Here's three more (in fact the only three cars in this entire movie, saved a Westland Whirlwind helicopter). Hope I got the filesize right this time.

http://img.photobucket.com/albums/v609/Kooshmeister/iot_car.jpg
Austin Sixteen (?) used by the main characters throughout the film. I have no idea what it is, but it's got suicide doors. 4 stars.

http://img.photobucket.com/albums/v609/Kooshmeister/iot_landrover1.jpg
Despite the filename, actually the second of two Land Rovers in the film. 3 stars.

http://img.photobucket.com/albums/v609/Kooshmeister/iot_landrover2.jpg
The first Land Rover (again, despite the filename), seen only at the beginning. 2 stars.

Both Land Rovers are the exact same type of model, but they're owned by different characters, the first by the movie's resident mad scientist, the other by a supporting good guy.