how would you spot them? I've had people ride in the car with me, and if they aren't paying really close attention they don't alwas notice things like pushing the clutch in to coast, altho I have had a few people comment how I tend to take corners a bit fast, but controled, or how my starts are smooth, but from talking to people who get good mileage, it's just good driving, and most people notice only the bad drivers.
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