[Deadbird] decided to use a LEGO 8880 Super Car as a host for all of his electronic tinkering. Throughout his blog (translated) you’ll find the vehicle with an Arduino MEGA interfacing various prototyping bits. It starts with the motors for locomotion, closely followed by a servo for steering. From there we see the addition of a breadboard and graphic LCD screen. So far he’s worked out the use of a PS2 keyboard as a controller and, most recently he’s interfaced a Wii Nunchuck.
We’re more used to seeing NXT kits adapted for wider use, but if you’ve got a nice kit like this one it makes a great base onto which you can add your own robotic elements.