Official figures and a few more details about the construction of the Roadster have been announced. The engine has gone through final dyno tests to optimize power, fuel consumption and emissions. The compact, 15-degree VR6—three overhead cams per bank, three radial valves per cylinder, six throttle bodies and an 11.5:1 compression ratio—generates 161 horsepower at 9000 rpm, a good value, given the fat torque curve that delivers 66.4 foot-pounds of torque at just 2000 rpm, climbs to 73.8 ft.-lb. at 3500 rpm and surges to a 99.6-ft.-lb. peak at 7000 rpm.