As you all know by now, I love BMW's. That said, my boss was loking to buy a new Cadillac and I instead convinced him to buy a used low mileage 2005 525.... Awesome car..... just don't be stupid and try to drive it down a flooded street as the air intake is very low on these cars and he was the third guy to have his 5-series towed into the dealer that day with a ruined engine due to water ingestion
Luckily he was covered somehow (not sure if it was his insurance or warranty) and the dealer installed a new engine. I don't know what he was thinking (I guess he wasn't), but for some reason the new 5-series does not like ingesting non-compressible fluid
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