so my mom is selling my car and she offered to share her car with me. she only uses her car for work and she does not mind if i drop her off and pick her up. if i share with her the advantage is that i can be driving either a new 5 series, 3 series, or a range rover which ever one she likes best. if i don't then i have to wait until to the summer to buy my high mileage e36, but i can put whtever mods on it. any suggestions?