This is hands down the best car I've ever owned! My previous car was a 2006 Mazda MX-5. The MX-5 cost me over $20,000 out the door... this one cost me $4400 in perfect mechanical condition and very good cosmetic condition, and I like this car better.
It handles just as well as the MX-5, it accelerates at least as well, and it has just TONS more torque! The interior is more comfortable, the in-dash computer is light years more advanced than what was in my MX-5, and the original sound system in my 325is blows the socks off the one in my MX-5.
It's also easier to control in the wet. The short wheelbase of the MX-5 tended to spin you around if you pushed it too hard. The 325is gently slides out, and it is very controllable in a sideways drift.
The 325is also manages to have a stiffer suspension, while still riding smoother than the MX-5. In fast sweeping corners the stock MX-5 suspension would start to tuck under... and suddenly pop up on the outside corner if you were going too fast. The 325is remains fairly solid, and only slides out if you push it too far... again, very controllable and predictable versus the MX-5.
In my opinion, this is THE ultimate driving machine. If I didn't believe that I would have bought something else newer. I've driven my cousins 1997 540i with sport suspension and 6-speed manual transmission, and yes it's fast, yes it handles well, but it just doesn't compare to the E30.
Granted, my car had every option available on it when new. But it has held up so well over time. The car is still solid, with no squeaks or annoying rattles. The doors still close with a solid THUD! that you would expect from a high end premium car. The engine runs like it's brand new, with the power curve and smoothness only available from an inline 6 engine. With the Dinan performance chip, it's pushing 183 HP with nearly as much torque out of a 4.11 LSD rear end. This means FAST acceleration and a setup in which no hill or mountain is a challenge.
The interior is still in very good shape, with only minor wear on the front seats, and virtually no wear on the rear seats. My particular car has been maintained very well, and it shows. No other 21 year old car looks so good after being daily driven its entire life. Few other cars from that era would be worth maintaining so well for so long.
My only real complaint is that they don't still make these cars, and I will never have the opportunity of owning one new. I miss the remote door locks from my 2006 MX-5... but it will only cost me $80 to get some installed into this car. Everything else you would find in a new car you'll find in my car.
I'm a car enthusiast, so I will own other cars, that much is for sure. But I don't plan on ever selling this car. It is a survivor of a dying breed, has certainly hit the bottom of the depreciation curve, and will only go up in value and rarity from here on out. I had an E30 325e before this car, and it was really nice too. But if you want a classic, get the 325is. It is the best of the best.
My only recommendation is to NEVER bring it to a BMW dealership for maintenance. These are simple cars, you're best learning how to work on them yourself, or for the big jobs, find a trustworthy independent mechanic who won't overcharge you just because the badge is BMW. If you do that, the maintenance is no more than any other common sports car would cost.