May trade for an '87 300E 2.6 - what to look for?

[86560SEL]

I really wanted an 92-96 W140, (trade my Lincoln for one), but no luck. I have been asked by someone with a 300E (not sure of exact year, but its a late 80s model) if I would trade. Looks like a nice car and he said it runs fine.

On the trunk it says 300E and 2.6 on the other side. I am thinking this is a inline 6? I have owned several 80s Mercedes, one was a '85 380SE, '84 190D and our current '88 300SEL, but I have never owned this series and not familiar with them.

Can anyone tell me if these cars have any trouble spots and what areas should I look for?

Thanks!

Here is a pic of the car...