General Motors has released a few remaining details about its 2015 Chevrolet Corvette Stingray, including options and colors.

Mechanical components remain mostly unchanged from the 2014 model, aside from the new eight-speed paddle-shifted transmission option that has been fully described in earlier reports.

One notable addition is the ZF1 Appearance Package, which borrows body elements and five-spoke silver alloy wheels from the Z51 Performance Package. The aesthetic upgrades arrive without the Z51's under-the-hood enhancements, and likely with a much lower price tag.

The company is offering two other new packages that were previously announced, including the jet-inspired Atlantic Design Package and a Pacific Design Package that adds racing strips, black satin wheels and sport seats, among other features.

For an even sportier appearance, buyers can add a wide range of carbon-fiber elements including the front splitter, rear spoiler, tonneau cover and badges. Shark Grey Metallic has also been added as a new color, along with Daytona Sunrise Orange Metallic, while Cyber Gray Metallic and Lime Rock Green Metallic will not be available for 2015.

GM has not yet announced a pricing structure for the 2015 options.

When the 2015 Corvette Z06 originally broke cover at the 2014 North American International Auto Show six months ago, the power estimations were conservative. At the time, Chevrolet would *only* claim 625 horsepower and 625 foot-pounds of torque, with the subtle hint that there could be more after official SAE testing is done.

Guess what. SAE testing is done. And lordy, do we have ourselves a winner. Because officially, the 2015 Corvette Z06 will be one of the ten most powerful vehicles for sale in the United States of America for 2015, at 650(!) horsepower of work rate @ 6,400 RPM and 650(!) foot-pounds of twisting force at 3,600 RPM, thanks to its incredibly power-dense 6.2L LT4 supercharged V8 engine. In fact, it’s more powerful than the SRT Viper, McLaren 650S and Lamborghini Huracan LP 610-4. The Ferrari FF hardly beats it, at 651 hp.

Pretty sure what you’re hearing now is the Star Spangled Banner beautifully chanting emanating from the dyno charts.

The new LT4 is the driving force of the 2015 Z06. This jet engine disguised as a supercharged V8 has 457 lb-ft (619 Nm) just off idle and 625 lb-ft (847 Nm) at only 2,800 rpm. The V-12-powered Ferrari Berlinetta, for example, produces about 28 percent less torque than the Z06, despite offering about 12 percent more horsepower – and its peak torque isn’t achieved until 6,000 rpm. The LT4 maintains 90 percent of its peak torque, or 592 lb-ft (802 Nm), from 2,500 to 5,400 rpm. Such is the nature of forced induction.

Compared to its LS-engine predecessors, the 2015 Z06 produces 40 percent more peak torque (180 lb-ft / 244 Nm) than the previous-generation’s 7.0L LS7 engine – and 7.5 percent more than the supercharged 2013 Corvette ZR1’s 604 lb-ft (819 Nm). At 3,200 rpm, the new LT4 surpasses the LS7 by 208 lb-ft of torque (252 Nm). On the horsepower side of the graph, the LT4’s 650-hp rating is 29 percent greater than the LS7’s 505 horsepower (376 kW), and 12 horses more than the ZR1’s LS9 engine. That’s evolution. And don’t forget, it’s the only vehicle that will be on sale with over 650 hp/lb-ft which will channel its power through either a seven-speed manual or eight-speed automatic transmission.