See more from Ask Carzone 
Should I go for S or E?
2008 Mercedes S 320 or 2011 E 250 Estate? Both in great condition. I am undecided between the two. In terms of reliability and running costs, what do you think?
Our answer:
Hi Aidan,
Personally I'm a sucker for the E-Class Estate. In fact, if my Lotto numbers came up I think it would be the first car in my dream garage - right alongside the 911 GT3 and the Twisted Defender...
That 250 CDI diesel is an excellent engine too. A touch noisy, but very economical and if it's practicality you're after, the E estate's boot is a massive 700-odd-litres. Spacey.
The S-Class is still a cracking car of course but it's thirstier, more expensive to fix when it goes wrong and far less useful than the E-Class.
Let us know what you decide do go for.
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.