HSV Avalanche

Not to be confused with Chevrolet Avalanche.

Avalanche wagon

Avalanche XUV utility

The HSV Avalanche is an all-wheel drive crossover SUV that was manufactured by Holden Special Vehicles (HSV) between 2003 and 2005. Based on the Holden Adventra LX8 crossover wagon, the Avalanche range also incorporated a dual-cab utility model known as the HSV Avalanche XUV. The XUV derived from the Holden Crewman Cross8.

Both HSV vehicles were built in two series, the 2003 "Y Series II" (the wagon was actually available as of October/November 2003) and an updated version of the "Y Series II", which included some of the upgrades found in the newer "Z Series" HSV models. These later models are quite rare, with a build life of nine months from April 2005 to December 2005.

As with the related Holden VY all-wheel drive vehicles, the HSV Y Series AWD vehicles as built from September 2004 to March 2005 confusingly have Z Series compliance and VIN numbers; this correlates to the building of new specification Holden VZ and Z Series HSV non-AWD cars during this period.

The updated Avalanches with some of the Z Series upgrades can be externally visually differentiated from the Y Series versions by their re-profiled front bumper unit that looks less aggressive and which features a more integrated appearance to the auxiliary driving lights.

Powertrain

The Avalanche vehicles were fitted exclusively with the 5.7 litre LS1 V8 engine rated at 270 kilowatts (360 hp) of power and 475 newton metres (350 lb·ft) of torque, mated to a four-speed 4L60-E automatic gearbox. Permanent all-wheel drive was calibrated to deliver 62 percent of the power to the rear wheels, thereby maintaining a rear wheel drive feel to the handling of these vehicles.

Along with Holden's V8 Commodore-based AWD vehicles, the HSV Avalanche series was discontinued in late 2005 due to phasing out of the 5.7 litre LS1 engines because of the Euro III emissions regulations.