Yes some of these modern engines in a lightweight shell are truly amazing, I had to drive an almost new Fiesta last year with a tiny turbo engine and was dreading it as I had to do several hundred miles. I arrived amazed at the cars ability and tiny fuel consumption.
My concern as an engineer is how long can an engine this small developing that much power last especially with the extended oil changes these modern cars are supposed to survive on?
My guess is the manufacturers dont care as long as they last the warranty period and once they are past that you will be spending your hard earned on keeping them going.
As much as fuel economy is important if you are going to have to fit a new or refurbished engine or turbo every 80k miles what is the point?
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