The Fly 1

I found a good price on some new tires but don't know it the size is compatible found an answer for the 275x35x18 for the rear seams like it's a go
So will 245x45x18 fit on the front of an e55 (w211) trust me I searched!

AKnight55

Im sure they will fit, but thats a very tall tire relative to the rears.. You usually want to stay with a 2% (some say 3%) difference in diameter between the front and rears.

This is a good tool I use

http://www.miata.net/garage/tirecalc.html

The Fly 1

How about any real world experience? Who's running 245x45x18 up front

Manuyc

What do you want to go off roading with the car