How to use turbo on my car?

[Ivan]

HELP

How t use turbo on my car in level Highway 17 please help....i know that hand brake is SPACE...but cant find booster/nitro Turbo.

 

[The Monkey]

Shift.

 

[f|uke]

I believe its whatever key you have assigned to sprint.

 

[Beserker]

I have it on mouse two which is walk for me.

 

[freeman2]

Press Shift worked for me which is the default key for that funtion.