 As well as the cosmetic differences, under the skin the car received modifications to the chassis and suspension as well as the addition of servo-assisted brakes to all models including right hand drive versions.The new Polo mostly kept the same four-cylinder engine but now as well as the carburetted 1.0 L, fuel injection models were available with single-point injection, and all engines came standard with a catalytic converter to combat tightening EU laws on automobile emissions.Carburetted models remained available for markets where unleaded fuel was harder to obtain or emissions were not prioritized.