Robot Chassis Compared:

Dexter Industries GoPiGo3 Robot Base Kit, https://amzn.to/2FHLpaL
YIKESHU 4WD Robot Smart Car Kit, https://amzn.to/2DXNEF3
Actobotics Whippersnapper Runt Rover, https://amzn.to/2PTqOox
Dagu Rover 5 Tracked Chassis, https://amzn.to/2SeVYDk
Pirate-4WD Mobile Platform, https://amzn.to/2DVnp1W

Transcript:

Here’s the first robot I started with. It’s the GoPiGo3 by Dexter Industries, and it’s the most expensive one on this list at around $100. The reason it’s so pricey is because it’s more than just a chassis, it’s a system that comes with it’s own motor and sensor board that plugs right in to a Raspberry Pi computer board that you need to supply and will also set you back another $35.