guys, my dad and i are about to buy one for each of us. he found this e38 730il v8.. we've tested it and yup, the power is obvious. the car is in tip top condition. what i want to know is the engine.. that 3.0 v8 engine. do any of you guys have any idea about the engine? the major problems?

mine i just look at the 523i e39. its 2.5 with double vanos. manuf in 1999, registered in 03.

please let me know what do u guys think of these two cars. thank you.. my dad's been driving his 730il e32 for 11yrs already. maybe its time to change.

thanks!