Hey I thought about looking for a TGV article after the last article about the Maglev Test Track as it is still the fastest wheeled train.
Note that on 3 April 2007, a test TGV reached 574.8 km/h (357 mph) which is almost 40 mph more than featured in this article back in 2005 !

Hey I thought about looking for a TGV article.

I often take the Lyon Marseille Line, TGV go up to 320km/h on this line (200 mph). Into it, you don’t feel the speed because train is very stable, soundproofed and all its movement are very smooth (acceleration, deceleration, curve). It’s plaisant to see outside because you see beautifull landscape on this line and it change fastly.
There is a lot of TGV (and so people using it) on this line, so a lot of parisian tourist come in the south of France just for the week end because it take only 3h to do Paris-Marseille (it was impossible before, 8-9h of road).
TGV can use normal line everywhere in France (Europe?), but on classic railway, it go half speed (about 150km/h I think).
A last thing: rail-wheel are not under wagon but between wagon.