Andy Priaulx’s BMW 320si
The remarkable BMW 320si is a lot faster than other automobiles that hit the British Motorways, but is less comfortable at the same time. Luxury had been traded for performance because it is a hybrid racing car from showrooms down the block.
The car body weighs 355 kg made up of 550 sheet metals assembled at the BMW factory in Regensburg, Germany. It had undergone welding and installment of adhesive seams to build the car figure.
The safety cage was developed from computer assisted design engineering. It took almost 200 hours for the specialist engineers at BMW to fit the steel cage.
A series of virtual crash test was done to determine the strength of the case, where and how it will be distorted in cases of collisions.
Safety features of the car includes the Hans (head and neck support) system, crash pads, special foams for energy absorption during a crash and a vice-like six-point safety belt that clamps the driver in his seat.
The car must meet the weight requirement of the World Touring Car Championship of 1,140 kg, the driver included.
Under the hood of the BMW 320si is a 2.0 litre, four cylinder engine that generates 275 horsepower compared to the 173 horsepower from an ordinary road car engine. Other BMW engine parts like BMW Catalytic Converter (not Volvo catalytic converter), Radiator and other engine parts are also enveloped under the hood.
The BMW 320si WTCC is built with huge brakes. The size of the brake aims to slow the car from 200kph to standstill in 130 metres and at the stame time presses the driver into the safety belts with a force of 1.5kg.
It is the first BMW racing car that uses state of the art technology that simplifies the transmission of electrical and control signals. It also enables exchange of data between different control units.
