APX stands for “Aluminium Performance Crossover” and is the first example of a complete vehicle built on the innovative Lotus Versatile Vehicle Architecture (VVA) platform.
APX is a demonstration of Lotus Engineering’s ability to create innovative and exciting, high performance products through its world class capability in Vehicle Design, Performance Powertrain Engineering and niche vehicle development.
It is a 7-seater (a 5 +2 with the two rear seats being occasional) four-wheel drive “Crossover” vehicle with a front mounted 300 HP supercharged V6 petrol engine. Weighing in at just 1,570 kg and with a power to weight ratio of 191 HP per tonne, the APX has sportscar like performance of 5.4 seconds to 100 km/h (5.0 seconds to 60 mph) before reaching a top speed of 245 km/h (152 mph). These performance figures are as good as the highest performing 4x4 “Crossover” vehicles from other brands with up to 195 HP per tonne. Crucially though, whereas those vehicles need higher output engines to compensate for heavy weight, APX does not. Combined fuel consumption for APX is estimated to be 8.7 litres per 100 kilometres (32 mpg) – impressive on its own and more so when compared to its production rivals which often consume more than 13 litres per 100 kilometres (22 mpg).
APX is manufactured predominantly from aluminium in the form of high-pressure die-cast corner nodes, stampings and extrusions. It uses advanced assembly techniques, including adhesive bonding, self-piercing rivets and flow-drill screws for construction – joining techniques that Lotus calls Riv-Bonding. Lotus has optimised the use of these technologies thus significantly reducing the number of mechanical fixings within the monocoque structure. This has reduced the level of investment required in manufacturing equipment.