cars diggers tractors

anything with wheels works - he has been thoroughly gender programmed (from birth - I promise it wasn't me!) to be obsessed with 'hot hot' cars, bikes, tractors. he points at the engines and says 'hot' and squeals like he's at a banger rodeo-thing. At least I didn't end up with a boring old girl! I'm learning all about g-force and chassiss and overdrive and how many cars monster trucks can leap over. any books without cars in them he picks up, looks at the cover and then chucks across the room. hmmmmm. actually I am exaggerating a little. We can entice him into some other things, but cars are his default position.