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