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