Bobbi Kristina -- I PROMISE Not to Crash My New Car

Bobbi Kristina has finally gotten rid of the black Chevy Camaro she smashed up on multiple occasions -- replacing the car with something she believes is MUCH safer to drive ... TMZ has learned.

According to sources close to Whitney Houston's daughter, the girl purchased a 2013 Lexus IS 250 right before Christmas -- and is telling friends she feels much more comfortable driving the new car than she did the Camaro.

Bobbi feels the visibility in the new whip is a LOT better -- which might help lead to fewer accidents.

As we reported, Bobbi crashed her old Camaro multiple times -- first into her boyfriend's parked car, then into several trees on a Georgia embankment. She was also involved in a third accident in the Camaro, riding in the passenger seat.