McLaren officially stopped production of the P1 after building 375 vehicles, but that doesn't mean you can't still buy a new one just a little smaller.
McLaren is having a range of scale builders offering up variations on the P1 just in time for Christmas.
It starts at the 1:64 scale with $15 and rises all the way up to 1:8 scale with over $10,000. You can get a Lego version that's part of the Speed Champions series, so you can build your own P1. If you want it to move a bit more quickly, Scalextric has a slot car P1, and Maisto will sell you a 1:14 scale radio-controlled P1 that you can use to race down the neighborhood cats.
If you already own the full-size P1, perhaps you want a smaller one for your office. Made by Amalgam Fine Model Cars, the flagship model with 1:8-scale has every last detail of the actual car—except for a working motor.