Thank you Sir, though I should point out that they are entirely copied from designers much more talented than I. My only talent is to 'improve' things slightly - for example by adding 1x1 brackets to the wheel arches of the Jerry Builds Bricks red sports car it closed a slightly annoying gap in the bricks. I also tend to substitute a silver 'rolling skate' brick for the door handles instead of the 1x1 round plate..
Only a couple, so far - the James Bond Aston Martin and the Fast and Furious car (I also made the 1960s Batmobile and the Star Wars Landcruiser but they are not technically speed champs). I personally find 8 studs a bit wide for the scale that I'm aiming for, and a lot of the speed champs are a bit 'samey' if you get what I mean. I tend to go with retro designs, max 6-studs.
