Here is the full list of all 50 Speed Kills achievements.
1000 kills.
Get killed 100 times.
Win all of the championships: Gold on all of the planets.
Become a champion on Trantorus.
Earn 1000 points.
Win Trantorus Championship on Viper or Razor antigrav. You must drive Viper or Razor on all of the tracks in this tournament.
Finish second 50 times.
Fly out of the track 100 times.
Perform 10 Triple Kills.
500 kills.
Collect $10000 in Money Pickups.
Win Navius Prime Championship on Marauder truck. You must drive Marauder on all of the tracks in this tournament.
Win 10 races in a row.
Win Angkor Championship on Lynx sportscar. You must drive Lynx on all of the tracks in this tournament.
Win a race on Void XIII on your debut.
Maximum upgrade of all vehicles.
Win a race with a gap of at lest 15 seconds from the runner-up.
50 respawns.
Get killed by a mine 20 times.
Win a race on Navius Prime on Hound or Wolverine sportscar.
Win the same tournament three times.
Use oil 100 times.
Win 50 races.
Put 100 mines on track.
Pick up Speed Boost 100 times.
Earn 500 points.
Win the same tournament twice.
Buy all of the vehicles.
Collect $200 000.
100 kills.
Use Nitro Boost 500 times.
Unlock all championships.
Win all of the races in a division.
Buy an Antigrav.
25 restarts of the race.
Collect Repair Bonus power-up 50 times.
Kill all of your opponents in the race at least once.
Win 3 races in a row.
Collect 50 Ammo Clips on a track.
Maximum upgrade of any vehicle.
Earn 100 points.
Win 10 races.
Win a tournament.
Explode while flying.
Get a promotion to Division A.
Fail a Division 3 times.
Win a race with a gap of less than 1 second from the runner-up.
Repaint your car.
Kill somebody while using Double Damage power-up.
Win a race.