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