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