Bought it with 30K on it after trading in my 328i. Still have it with 100K and it's been the best drive I ever had. Also own a 03 330 convertible and still like the solid, smooth ride and power curve of the 98. It's as tight as a drum, no rattles. All E39s need an aftermarket water pump at 50K due to the plastic impellar, thermostats every 30k, and a better cupholder which can be retrofitted in the change holder. I'm thinking of getting a new 3xi series, but can't bear parting with the 98. Oh yeah, no iDrive!!!
Ride, suspension, brakes, power curve, transmission, large trunk, great seats, heated seats, and heated steering wheel, finish.