The new 2015 Lexus IS currently has undergone over 1.6 million kilometres of testing and development in order to ensure that all new models have excellent dynamic capabilities while offering space and comfort.

The testing of the 2015 IS took place on the road, track and laboratory including conditions on ice and snow of the southern hemisphere, the heat of the northern hemisphere, along with the gruelling test bed of circuits such as the Nurburgring in Germany and Fuji Speedway in Japan.

In fact, the driving dynamics was the higher priority in these tests. The goal – to attain the "fun to drive" characteristics of the IS. The conventional approach to its development would involve developing each of the individual aspects of the car. The engineers have built it by first constructing the foundation and then proceeding to build up from there.

The end result is that the new Lexus model will have new body strengthening techniques, including laser screw weld and body bonding, suspension system that delivers. The latter delivers 20 per cent increase in roll rigidity.

Source: Lexus