Here's an amazing CT scan of a wind-up toy race car โ€” perfect for a weekend that's the putative start of racing season. Isn't it adorable and child-like โ€” sort of like a couple professional racing leagues we know?

Note the key on what would be the "driver's" side (if it were a two-seater) with the driver easily recognizable behind the steering wheel.

Perhaps the most interesting part of this image is the spring whose loose coil can be seen directly to the right of the driver. The spring is connected to the drive mechanism.

So here's a weekend racing guide โ€” let us know if we're missing anything All Times ET:

Friday, May 22, 2009
Indianapolis 500 Miller Lite Carb Day โ€” 11:00am-4:00pm
World of Outlaws -Sprints โ€” 8:00pm-10:30pm

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Saturday, May 23, 2009
Formula 1 Qualifying โ€” Monaco Grand Prix โ€” 8:00am-9:30am
NASCAR Nationwide Series โ€” 7:30pm-10:30pm
AMA Pro Motocross 450 โ€” 9:00pm-10:00pm
24 Hours Of LeMons Reno โ€” Race Session I โ€” 11:00am - 7:30pm

Sunday, May 24, 2009
Formula 1 โ€” Monaco Grand Prix โ€” 7:30am-10:00am
IndyCar โ€” Indy 500 โ€” 1:00pm-4:30pm
NASCAR Sprint Cup โ€” Coca-Cola 600 โ€” 5:45pm-10:30pm
24 Hours Of LeMons Reno โ€” Race Session II โ€” 10:00am - 3:00pm

[via radiologyart]