an up to date buggy would be put to a LOT of use through out the game! would be beneficial for the greater part of the community!
yes there is, and the outlaw is nice but independent front and rear are great for hill killing but make for an un stable rig for any kind of off cambered obstacles.
JackLumba and hog0005 have a mod that adds a ton of offroading parts to the Hopper that you might like to use. https://www.beamng.com/threads/offroad-hopper-mega-pack-updated-05-07-17.38572/page-32 The latest version is near the bottom of page 32