Fiat's TwinAir engine has been named 2011 International Engine of the Year. The 875cc twin-cylinder engine also won in the Best New Engine, Green Engine of the Year and Sub 1-litre categories.
The Fiat group also secured two more class wins, with Ferrari's 4.5-litre V8 winning Best Performance Engine and the Above 4-litre class.
Volkswagen's 1.4-litre TSI Twincharger engine, winner of the overall award for the last two years, was second in 2011.
All but one of the 11 category winners was a petrol engine – the single diesel winner being BMW's 2.0-litre TwinPower unit.
2011 International Engine of the Year
Overall
1 Fiat 875cc TwinAir petrol
2 Volkswagen 1.4 TSI Twincharger petrol
3 Ferrari 4.5-litre V8 petrol (458)
Best New Engine of the Year
1 Fiat 875cc TwinAir petrol
2 Nissan Leaf electric
3 Ford 1.6-litre turbo petrol
Green Engine of the Year
1 Fiat 875cc TwinAir petrol
2 Toyota 1.8 petrol hybrid
3 Nissan Leaf electric
Best Performance Engine
1 Ferrari 4.5-litre V8 petrol (458)
2 Porsche 3.8-litre flat six (GT3)
3 Mercedes-AMG 6.2-litre V8 petrol
Sub 1-litre
1 Fiat 875cc TwinAir petrol
2 Toyota 998cc petrol (Aygo/IQ/Yaris)
3 Hyundai/Kia 998cc petrol (i10/Picanto)
1-litre to 1.4-litre
1 Volkswagen 1.4TSI Twincharger petrol
2 Fiat 1.4 Multiair petrol
3 Volkswagen 1.2TSI petrol
1.4-litre to 1.8-litre
1 BMW 1.6 turbo petrol (Mini Cooper S)
2 Alfa Romeo 1750 DI turbo petrol
3 Toyota 1.8 petrol hybrid
1.8-litre to 2-litre
1 BMW 2.0-litre TwinPower diesel
2 Audi 2.0-litre TFSI petrol (Audi S3)
3 Audi 2.0-litre TFSI petrol (Audi A4)
2-litre to 2.5-litre
1 Audi 2.5-litre five-cylinder turbo petrol
2 Mercedes-Benz CDI 2.1-litre diesel
3 Subaru 2.5-litre turbo petrol
2.5-litre to 3-litre
1 BMW 3.0-litre DI twin turbo petrol
2 BMW 3.0-litre twin turbo diesel
3 Porsche 2.9-litre DI flat six petrol
3-litre to 4-litre
1 BMW 4-litre V8 (M3)
2 Porsche 3.8-litre flat six (GT3)
3 McLaren 3.8-litre twin turbo
Above 4-litre
1 Ferrari 4.5-litre V8 petrol (458)
2 Mercedes-AMG 6.2-litre V8 petrol
3 BMW 4.4-litre DI turbo petrol
