Update: Only two guesses? Okay, here’s a slightly bigger picture.
We have a tie on the Corgi Rover 2000. Jim knew it was a Rover 2000, but excluded himself a bit by saying it wasn’t the giant sunroof version. Shortly thereafter Alistair1 mentioned the Golden Jacks version, which is correct. So the two of you will just have to share the win!
Tomorrow’s writeup is a full-size car and not a model, but that’s the only hint you’re going to get. What could it be?