IS250 to ///m3(e46)


Sometimes you have to pay to play

I say no on buying an M3 at this point in your life. Unless you and your parents are rich. Then buy a bran new one.
1. E46 325i
2. E46 330ci
3. E85 Z4 3.0i
Each of them have been relatively reliable, as the only things you have to account for once out of warranty are rubber items (due to deterioration - from window moldings, control arm bushings to coolant hoses), plastics (coolant expansion tanks come to mind), and the various quirks in the engines/suspension. The cars needed very consistent maintenance, and once you stick to that schedule, it runs like any Lexus out there. The parts are actually about the same price, and so are the mechanic rates (as both are luxury cars).
You're right that I haven't owned an M. But my last car was a 2003 E55 AMG. I knew I was taking a risk with a German luxury car in terms of maintenance and reliability, so I tried to choose a used one that had the highest likelihood of NOT being a repair nightmare. Found a 2003 with only 60k miles, one adult owner, bought and serviced at the same Mercedes dealership regularly, no accidents.
Well, within 6 months of ownership it had racked up $15,000 of repair costs (it only cost $26k). I knew I had to ditch the car, so I started looking into M3s, M5s, and RS6's. I quickly found each was worse than the next in terms of number of issues, reliability, and repair costs. The number of TSBs on each was just pages and pages long.
I ultimately traded the E55 in for my IS350. I was obviously sick and tired of paying $1000 each week for a new repair, but more importantly I hated the fact that I never got to enjoy the car. Each time I sat down in it I was worried what new light would pop up on the dash. Over 6 months of ownership, it probably functioned at 100% for a total of a week's time. The rest of the time something was wrong and it was either on its way into or at the dealership.
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