Here is the full list of all 23 Turbo Dismount achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
Launch three consecutive dismounts at max velocity.
Do a successful barrel roll and landing.
Perform 1000 decapitations.
Complete 100 dismounts with the Pink Lightning.
Totally demolish all vehicles (that can be demolished).
Do ten strikes with the Bowling Pins.
Cross the finish line on Skid Marks at 88mph.
Nail it 100 times.
Try everything once.
Launch 1000 dismounts.
Get hit by five different NPC vehicles in T-Junction.
Cut down 100 trees.
Drive through 1000 turbo pads.
Detonate ten mines in a single dismount on Run DMZ.
Reach a height of 1000ft (305m) in Space Program.
Reach a record time on Skid Marks.
Pull ten somersaults in a single dismount.
Fully obliterate Mr. Dismount.
Play a Steam Workshop level.
Customize Mr. Dismount or a vehicle.
View a replay in slow motion.
Lose only a single limb during a single dismount.
Totally demolish a single vehicle.