The Elise's incredible handling is made possible by a bonded extruded aluminum chassis, four-wheel-independent suspension, Eibach coil springs, Bilstein gas shock absorbers, AP Racing/Brembo brakes, multi-spoke alloy wheels, and Yokohama performance tires. The base Elise and California Edition are powered by a tuned 190hp 1.8-liter four-cylinder engine with a six-speed manual transmission. The SC uses the same 1.8-liter four-cylinder, but a supercharger boosts output to 220 horsepower. The available Touring Pack includes insulated soft top, full leather seats, upgraded stereo system with iPod connector, stowage net, additional sound Insulation and full carpet set. The optional Sport Pack provides lightweight forged alloy wheels, sport tuned suspension, twin oil coolers, traction control and ProBax sport seats. A limited-slip differential is also available. The limited-edition California features significant bodywork and upgrades including Touring Pack, rear spoiler, two-tone leather interior, hardtop and Alpine sound system. For 2008, upgrades to the Lotus Elise include a new tire pressure monitoring system, a new instrument display with a high-definition LCD message panel, and a new integrated ignition key design. The SC and California Edition are new for 2008.