Yeah, TSM Map mod is one to look for.
I really like it - or some areas in it anyway. Driving through the mountains of Tunisia for the first time was pretty breathtaking! I thought that in some of the recent additions to it have been subpar though, and in a couple of places they just went overboard with all the toys (Casablanca, last time I checked it out, was just a crazy collection of every possible object, with a steep spiral climb through the middle of town. wha??
)
Excellent modding community out there though, and it's great to see the support it's been given by developers.