Here's a pretty cool glitch that will allow you to ride on your dinosaur!
Step 1. Wear the jetpack on your penguin. If you don't have it, wear any other item that has a special dance.
Step 2. Press "D" to activate the special dance.
Step 3. Transform into a Pteranodon (flying dino).
You are now sitting on your Pteranodon dinosaur!
Who needs a car when you can just fly on a dinosaur? LOL!