Best Fuel Economy
Honda 1.3-litre IMA (Civic)

Best New Engine of 2003
Mazda RENESIS Rotary (RX-8)

Sub 1-litre
Honda 1-litre IMA (Insight)

1-litre to 1.4-litre
Honda 1.3-litre IMA (Civic)

1.4-litre to 1.8-litre
MINI Supercharged 1.6-litre (Cooper S)

1.8-litre to 2-litre
Honda 2-litre (S2000)

2-litre to 2.5-litre
BMW 2.5-litre (325i, 525i, Z4)

2.5-litre to 3-litre
Mazda RENESIS Rotary (RX-8)

3-litre to 4-litre
BMW 3.2-litre (M3)

Above 4-litre
Volkswagen 5-litre V10 TDi (Touareg, Phaeton)

Best Performance Engine
Mercedes-AMG 55 (CL55, E55, S55, SL55)

International Engine of the Year 2003
Mazda RENESIS Rotary (RX-8)