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