If you wish to row your own, the lesser IS250 is your only choice. It starts at a more obtainable $30,580 and comes standard with a six-speed manual (the automatic is an $1170 option). And it needs it-this lesser 2.5-liter V-6 makes 204 horsepower and 185 pound-feet of torque at a lofty 4800 rpm. Math geniuses can tell you that’s 102 fewer horses than the IS350.
The 2.5-liter pulls the IS to 60 mph in 7.1 seconds, two seconds slower than the 3.5-liter. Still, that’s 0.1 second quicker than the fastest IS300 we’d ever tested. The IS250 jogs through the quarter-mile in 15.4 seconds at 90 mph (tying that old IS), compared with the 3.5-liter’s 13.7-second sprint at 104.
