possibly,
the best review,
of any vehicle,
of the last decade.
an example,
"To ensure adherence to the low emission and consumption values, even with different fuel qualities, the US versions have a lower compression ratio (10.0:1 instead of 11.4:1). This measure enables the engine to run closer to optimum combustion under a high load, resulting in low emissions and low consumption coupled with maximum driving fun."
so, if tall and big,
the smart will still run with near optimum combustion and low fuel consumption.