How much horsepower does a nearly 10 year old BMW make? BMW 135 Dyno test results. DFW's cars, D Ferrari W's thoughtsYesterday 8:51pm217EditPromoteGo to permalinkDisclaimer: So this is my 1st article guys, please like/ and be gentle with critiques. A decade isn’t too long a time for a car, but one has to figure after all those years, at least a few ponies had to be put out to pasture, right? So how many horses had bitten the dust here was what I went to find out.