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