(W163) body-on-frame used by the M-Class vehicles produced from 1998–2005. The X164 GL-Class, a longer seven-seater version of the W164 platform, is also available. New features in the 2006 M-Class include the 7G-Tronic seven-speed automatic transmission, optional Active Curve-Illuminating Bi-Xenon headlights which "steer" in the path of the vehicle, and an adjustable-height air suspension. The manual transmission has been dropped. Permanent 4Matic four-wheel drive remained, with one-speed transfer case (no low range), center limited-slip differential and four-wheel electronic traction system (4-ETS). In most countries except the U.S., an Off-Road Pro package with center and rear differential locks, 4-ETS, two-speed transfer case with reduction gearing, and adjustable ground clearance was available as an option increasing the original fording depth from 500 mm to 600 mm. The AMG version of the W164, the ML 63 AMG, was introduced at the 2006 North American International Auto Show as a limited edition 2007 model. It features a 6.2 L M156 V8 engine producing and that is handcrafted in Germany. The engine is added to an AMG Speedshift 7G-Tronic seven-speed automatic transmission. The 2006 ML 63 AMG can accelerate from in just 4.8 seconds, or from in just 5.0 seconds. These impressive features made the ML 63 AMG the most powerful naturally aspirated V8 SUV in the world. Facelift By 2007, design work on updates to the W164 were finalized and patented domestically in Germany on 23 November 2007. The 2009 Mercedes-Benz M-Class got a minor facelift as it debuted at the 2008 New York International Auto Show in March 2008. This facelift includes new front headlights, redesigned front and rear bumpers, new exterior mirrors, new rim choices, a larger front grille, restyled interior, and a new ML 420 CDI engine choice. The ML 280 CDI became the ML 300 CDI, the 320 CDI became the 350 CDI, and the 420 CDI became the 450 CDI. Models using Bluetec Diesel engine with urea injection were introduced in 2008 for the 2009 model year. At the 2009 New York International Auto Show, Mercedes-Benz showed their ML 450 Hybrid SUV, which was announced on 8 April 2009. The ML 450 Hybrid consumes almost 50% less fuel than the ML 550 does, even though it produces over 90% of the power generated by the V8 model. Total power generated will be and of torque, while getting on the highway and in the city, according to United States Environmental