Full list of all 12 Jet Car Stunts achievements worth 1,000 gamerscore. It takes around 6-8 hours to unlock all of the achievements on Xbox One.
Complete all Collector levels.
Beat the time 2:26:00 in Time trial Medium C.
Beat the time 4:25:00 in Time trial Hard B.
Complete all Time Trial levels.
Beat the time 1:48:00 in Time trial Easy A.
Complete Platforming Very Hard A without any retries.
Complete all Platforming levels.
Complete Platforming Hard A in less than 0:50:00 with no retries.
Beat your own ghost in a Time trial level where you already have a gold medal.
Get a gold medal.
Get a bronze medal.
Get a silver medal.