Engaging travel mode just milliseconds before crashing into the police barricade is just about the coolest thing I've seen in a mod ever.
Says the uploader:
DISCLAIMER: There is no single "Download Link" for this mod. It's a HEAVILY CUSTOMIZED PC project from a die-hard BTTF and GTA fan. It took me months to tweak everything and finally get it working right but I couldn't have done it without the help of some truly great mod makers (credits/links below). Please don't just start modifying your game without researching and backing things up first. You WILL break it.