Video games about races can get your heart racing with as much tension, drama and action as any fight-packed blockbuster. The latest hits make full use of the new technical abilities of PCs and consoles, and are also surprisingly varied, ranging from quick fun races to sprawling open world spectacles. “GranTurismo7” The game design philosophy of “Gran Turismo” can be summed up in a single word: details. Few series offer as many cars, greater scope and such rich attention to detail than Polyphony Digital’s ode to the automobile. The racing game series, exclusive to Sony, has been providing bags…