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