CSR Racing is a drag racing game, which is code for 'we don't feel like building a racing physics engine.' If you're looking for a traditional driving game - one with all the bells and whistles like the ability to turn your car - look elsewhere.
In all seriousness though, this is a visually spectacular app. If it's good enough for Apple's iOS 6 keynote presentation, it's good enough for your iPhone or iPad. We give CSR major props for doing one thing extremely well: graphics. Though the environments are limited in size, (the game mainly takes place in straight lines, after all) the graphical detail is superb. They aren't kidding when they say it blurs the line between mobile and console gaming. Xbox 360 caliber? Not quite. But CSR gives original Xbox games a run for their money.