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