I need help with my 93 740il. When i get it up to 50mph or so it sounds like i have offroad tires on the car and it shakes it a little. Anybody have the same problem or know what it might be would be of great help to me.

What brand tires do you have, do you know how many miles are on the tires?? Typically the offroad noise is either a broken belt, or the tires are cupped from misalignment from worn suspension/steering components and or tire pressure. Both would cause a slight vibration. Hope this helps!

Yor car is an E32, so most of the suspension parts are same or equal to the E34 5 series. So read this
http://www.bmwe34.net/e34main/trouble/what_will_break.htm

But first of all, rebalance thw wheel/tire combo and then see if it improved.

Shogun, I will try the rebalance and thanks for the link. I work on my own stuff, (gift from a dad that raced everything under the sun), so the parts will be all i am out. Just wanted to pick your brains about this so i did not have to take weeks to find the problem. The tires are Michelins. Brand new when i bought the car, maybe 7000 miles on them at the most. Started to do this when it got cold, did not do it when i first bought the car. Thanks again and i will keep you guys informed. If you have anything else, let me know.