European and Asian markets prefer smaller cars than America does. Europe because of high fuel prices, Asia because they're cheaper to run. A road infrastructure and
culture built around cars like this isn't suited to traditional American cars. How can they be, when some larger US sedans and SUVs are wider than most delivery trucks here? Cars in Europe and Japan have to work in traditionally narrow roads of quaint little towns, and sizing cars like this has had its effect on the modern infrastructure built around them.
In the US, you didn't have a rich layer of history bundled up in a Roman road system, so American cars tended to be much like the country they were built in... wide, smooth and expansive.
Many mainlanders on the forum will interject: "Our roads aren't
that smooth and wide!"... but you haven't been on a proper drive through European or Asian traffic. The hustle. The bustle... driving a car that's narrower than a Chevrolet Aveo down a two-way street with one wheel in the gutter and
still banging mirrors with the subcompact coming the other way. The unique needs of the European market have ensured that even large European cars tend to have relatively tight steering. The unique needs of the Asian market ensure that even large luxury sedans are relatively narrow. Tricky, twisty mountain roads have also ensured that they need a tighter suspension, too.
There's an area where Japanese cars differ, a bit, though... Japanese suspensions, in general, seem a bit stiffer... harder spring rates... than European cars... no cobbles to deal with in Japan... although newer Japanese cars are better in this regard... and I don't know anything that rides worse over cobbles than a brand new Bimmer (oh, how the mighty have fallen!).
Either way, and for whatever reason... a car designed to drive over such a wide variety of conditions is bound to be more engaging and better to drive than one that isn't... which is why many American manufacturers now test in Europe... to good results (the CTS comes to mind here).
As for bias: EVO's Top 100 Driver's Cars... yes, only 1 American in the top 100, but it's at 14 (Ford GT)... top ten is: 3 Brits, 2 Italians, 2 Japanese, 2 French and 1 German... And not a single BMW in the entire top ten. An Italian wins. Seems a pretty fair result, don'cha think?