I would buy them from Tire Rack. They are AT Italia Type 8's and they look identical. The price is also unbelievably cheap at $109 / wheel:

http://www.tirerack.com/upgrade_garage/WheelSearch.jsp?filterSize=15&filterFinish=Painted&changeColor=Vehicle+Color&filterSpecial=null&auto Make=Mercedes-Benz&autoModel=400E&autoYear=1993

The 7 X 15" wheels fit perfectly, and there are no off-set issues.

195/65-15 are the recommended size for this wheel.

I believe the Sportlines came with 16" wheels, but I could be wrong.

In any event, these 8 hole wheels are available from Tire Rack also in a 16" wheel X 7.5", and they will fit your husband's car perfectly, and there are no off-set issues. The tire size for the 16" wheels are 205 / 55 .

__________________
Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".