the setup for the G25 in Shift was very generic, you had to alter a few settings to get it to perform well, thats all..
thing is if you buy a G25 your getting one of the best wheels money can buy, so you shouldn't be afraid of having to spend time in various games adjusting and fine tuning it. Theres tons of options within the Logitech software that give you full control of the Force feedback options, sterring lock and sensitivity.. it's all worth the hard work.
also look at other games like rFactor or GT legends which offer a much more realsitic approach to driving simultation.