See more from Ask Carzone 
Motor tax for 2011 Mercedes GL?
What is the road tax for Mercedes gl 450 2011
Our answer:
Hi Simeon,
Doesn’t matter whether this is the GL 450 CDI V8 turbodiesel or the 4.7-litre V8 petrol, the Mercedes is a big, heavy, luxury SUV and both versions emit comfortably in excess of 300g/km of CO2; placing them in Band G (over 225g/km) and resulting in a bill of €2,350 per annum.
Have a motoring question? Ask us here!
Ask us anything motoring related and please provide as much information as possible so we can give you the most accurate advice.