But, but before you say so, check this out. Apple to apple comparison, diesel is in fact greener than hyrid using Porsche Cayenne as a good example:-
http://www.porsche.c...models/cayenne/
i. Cayenne S Hybrid
Layout / number of cylinders 6
Displacement 2,995 cm³
Engine layout Front
Power Combustion engine: 245 kW (333 hp) Electric machine: 34 kW (47 hp)Total system:279 kW (380 hp)
Max. torque (Nm) Combustion engine: 440 Nm Electric machine: 300 Nm Total system: 580 Nm
at rpm Combustion engine: 3,000 - 5,250 1/min Electric machine: < 1,150 1/min Total system: 1,000 1/min
Compression ratio 10.5 : 1
Top speed 242 km/h
Acceleration from 0 - 100 km/h 6.5 s
Acceleration from 0 - 160 kmh 16.5 s
Fuel consumption Tiptronic S
Combined in l/100 km 8.2
CO2 emissions in g/km 193
ii. Cayenne Diesel
Layout / number of cylinders 6
Displacement 2,967cm³
Engine layout Front
Power 180 kW (245 hp)
Max. torque (Nm) 550 Nm
at rpm 1.750 - 2.750 1/min
Compression ratio 16.8 : 1
Top speed 220 km/h
Acceleration from 0 - 100 km/h 7.6 s
Acceleration from 0 - 160 kmh 20.0 s
Fuel consumption Tiptronic S
Combined in l/100 km 7.2
CO2 emissions in g/km 189
iii. Cayenne S (Petrol)
Layout / number of cylinders 8
Displacement 4,806 cm³
Engine layout Front
Power 294 kW (400 hp)
Max. torque (Nm) 500 Nm
at rpm 3.500 1/min
Top speed 258 km/h
Acceleration from 0 - 100 km/h 5.9 s
Acceleration from 0 - 160 kmh 13.9 s
Fuel consumption Tiptronic S
Combined in l/100 km 10.5
CO2 emissions in g/km 245
Cayenne Diesel consume least fuel and produce least CO2 compares with Cayenne Petrol and Hybrid!
Haven't take into account that production and disposure of hybrid batteries polute the environmental futher.
Ok, our local diesel quality screw up, Porsche Diesel probably irrelevant here.
