u guyz better see this
Top Ten Most Polluting Cars:
1. Bugatti Veyron: 571g/km
2. Lamborghini Murcielago LP640: 495g/km (500g/km in Roadster form)
3. Ferrari 599 GTB Fiorano: 490g/km
4. Ferrari 612 Scaglietti: 475g/km
5. Bentley Arnage/Azure/Brooklands: 465g/km
6. Dodge Viper SRT-10: 463g/km
7. Ferrari F430 (Coupe & Spider): 420g/km
8. Hummer H2: 412g/km
9. Mercedes G500: 400g/km
10. Bentley Continental GT/GTC/Flying Spur: 396g/km
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Mercedes-McLaren SLR :348g/km