Lightning, The Saturn Curve and Chevrolet Nomad. All three cars were received reasonably well, but were not nearly as embraced as the original Solstice Concept. The original 2003 Vauxhall VX Lightning Concept is the same size as the original Solstice Concept, and pieced together in the same manner as the 2002 Solstice Concept, and had been shown in Europe several months earlier, before the Kappa platform had been finalized and named (debuting approximately mid-May 2003, for Vauxhall's centenary celebration). The Vauxhall VX Lightning is the styling pattern after which the appearance of the Saturn Sky is based. When the Vauxhall VX was shown at the 2004 NAIAS, the Lightning part of the name was dropped and the vehicle referred to in the literature at the show as merely the "Vauxhall VX". The Saturn Curve and the Chevrolet Nomad concept cars were built on "modified" versions of the Kappa platform, and exhibited 12 inches longer wheelbases, and 2+2 seating. Another concept car, built by Holden and called the Torana TT36, was rumored to have started as a Kappa-based car with a twin-turbocharged V6, but the modifications necessary to accommodate the engine, transmission, and general vehicle size made it necessary to refer to the platform as "based on architecture similar to the Kappa and the Corvette." A hardtop coupe version of the Pontiac Solstice was produced for the 2009–2010 model years. Kappa production ended with General Motors' bankruptcy in July 2009. Spanish Car maker Tauro, used Solstices to market their version called Tauro V8. There is a misconception that people tend to believe that this company purchased the Kappa platform, but in reality they were conversions of existing cars. Shared components The Kappa architecture uses major components from nearly every GM division and modern platform: The rear axle and differential are from the Sigma-based Cadillac CTS The Solstice's interior storage bin is from the Y-body Cadillac XLR The passenger-side airbag, steering column, and exterior and interior door handles are from the Delta-based Chevrolet Cobalt, Pontiac G5 The Solstice's backup lights are from the GMT360 GMC Envoy The heating, ventilating, and air conditioning modules are from the Hummer H3 The Solstice's front fog lamp assembly is from the W-body Pontiac Grand Prix The Solstice's steering wheel is from the Delta-based Pontiac G5 The 2.4 L Ecotec engine is shared with the Delta-based Saturn Ion, Pontiac G6, Chevrolet Cobalt, Pontiac G5, and Chevrolet HHR