SMART FORTWO CABRIO Operating Instructions Manual page 150

Parking
>Important!
In order to ensure that the turbocharger
can quickly cool down after a full load
journey, the last few kilometres should
be driven at a slow pace or the engine
should run in neutral for a short period
prior to switching off the engine.
>Note!
The reverse gear R is not a runaway pro
tection device (parking lock), and if the
car is parked on a hill with a steep in
cline it may still roll away.
The car is only ever 100 % safe when the
handbrake has been applied.
148 Study in motion