The second generation Focus was launched at the Paris Motor Show on September 25, 2004, as a three and five-door hatchback and an estate, although the new car was previewed,[10] in 4-door sedan form, as the "Focus Concept" developed by Ford Europe at the Beijing Motor Show in mid-2004. The basic suspension design, which contributed much to the Mk 1's success, was carried over largely unchanged from its predecessor. Along with a 10 percent stiffer bodyshell, according to Ford this offers a better ride, but critics[who?] claimed the car lacked the precise and poised handling of the Mk 1.[citation needed] The same body styles as the Mk 1 Focus were offered, though the sedan did not appear until mid-2005. A two-door coupé-cabriolet with a retractable hardtop was added to the line-up in 2007. The Focus Mk 2 is larger and considerably heavier than its predecessor: it has a 25 mm (0.98 in) increase in wheelbase, and is 168 mm (6.6 in) longer, 8 mm (0.31 in) taller, and 138 mm (5.4 in) wider. As a result, the interior and boot space have increased. New technologies include a KeyFree system, a solar-reflect windshield, adaptive front lighting, Bluetooth hands-free phones and voice control for audio, telephone, and climate control systems.