Follow the indicated steps to earn the corresponding Steam achievement. To view your achievement progress and stats, open the Steam client, select "Community", then search for the game hub for "Smash Cars (PC)". Click the "View Stats" option in the drop down list, then select the option that displays the achievements for your account.

Achievement	How to unlock
Air Time Expert	Get 75 seconds of air in any level. You must earn a bronze medal or higher in order to unlock the trophy.
Bronze Champion	Earn a bronze medal, or better, in every level.
Demolition Master	Hit 15 objects in any level. You must earn a bronze medal or higher in order to unlock the trophy.
Gold Champion	Earn a gold medal in every level.
Lap Champ	Beat all base lap times in every level.
Race Ace	Beat all base race times in every level.
Safe Driver	Complete all levels without crashing or using any respawns.
Silver Champion	Earn a silver medal, or better, in every level.
Smart Driver	Find all the shortcuts in every level.
Smash Cars Superstar	Get 30 stars in one level. You must earn a bronze medal or higher in order to unlock the trophy.
Star Collector	Accumulate 270 stars using your best score from each level.
Trickster	Complete 15 air tricks in any level. You must earn a bronze medal or higher in order to unlock the trophy.