Game is still young, get it if you're interested in supporting the devs. If you want a finished "endless driving" game, stick with the first one for now.

Currently, the major changes from the first game:
►You have a life bar now so having a little fender bender isn't going to immediately end your ride. The threshold isn't very forgiving so don't expect to be ramming into cars like it's a Burnout game.
►Roads will occasionally have curves which is cool on long drives.
►Custom music is a base game feature, just drag and drop files into a folder within the game's install directory. It's buggy and you'll probably end up just turning the game's music volume to 0 and playing music from an external application.
►Most cars have ~15 livery designs to choose from, a dozen different wheels, and a dozen spoilers. You can make some really unique cars unless you're using the most expensive ones which don't have much visual customization beyond paint color.

[Maps]
►Fewer maps (Early Access). There are no copy-paste maps from the first game though Sunset Beach (ocean with palm trees) and Miami are very similar remakes.
►Maps are pretty basic (Early Access). Most are flat planes with some trees/pillars lining the roads. The skyboxes and lighting are what make them distinct from each other. The first game's maps weren't particularly detail-rich but with sequels you expect everything to be bigger and better. Miami is the one finished-looking map, I believe it is a reconstruction of the Ocean City beach street in Retrowave World - there's even some planes in the sky!
►For aesthetic bros - there's one vaporwave map, Floral Shoppe, but it's pretty barren. There aren't any neon maps like the cyber cities or arcade rug stages. There is a "city freeway at night" for sadbois. Two nighttime tracks have space-themed skyboxes (a wormhole or a planet) for the glorp gang.

Pretty damn good compared to the original one although i would like for the shop to have a better buying system