which is better C230K or C280

i have a 2000 C230 kompressor and a 2000 C280 and im going to sell one and im wondering which one too keep?

you'lll have less problems with the 280, althought scheduled maintenance is a bit more expensive (more plugs, etc). mileage probably won't be as good, but the 113 motor is a little better put together than the 111 in the kompressor.