Driving Dynamics: Chassis

The Volvo S40 combines an engaging, dynamic driving experience with a high level of active safety, thanks to its sophisticated suspension system, high level of torsional rigidity, wide track and the latest electronic stability systems.
"A modern Volvo should obey the driver's slightest command - immediately and without fuss," says Peter Ewerstrand, the Volvo S40 project manager. "It should be as enjoyable to drive as it is safe. We had particularly high ambitions for the Volvo S40 and we're more than pleased with the result. This is a car you'll truly look forward to driving whenever you get the chance."
The body of the current Volvo S40 is 68 per cent stiffer than that of the original thanks to advanced body design and the use of high-strength materials, including Ultra High Strength Boron Steel. This high level of torsional rigidity allows the suspension to do its job properly and its provision was integral to the Volvo S40's design. It benefits not only the ride and handling characteristics, but also its crashworthiness.
A further contribution to the Volvo S40's exceptional stability is provided by the wide track (1535mm front, 1531mm rear) and long wheelbase (2640mm). The former helps improve the car's balance, enabling it to cope with high cornering forces, while providing clear and consistent feedback to the driver. The long wheelbase, meanwhile, contributes to a balanced weight distribution with a low minimal moment of inertia. In practical terms, this enhances the steering response and helps ensure that the Volvo S40 responds in a controlled, predictable manner in all circumstances, making a major contribution to active safety.
See also:
Uniform Tire Quality Grading
Quality grading information
ALL PASSENGER VEHICLE TIRES MUST
CONFORM TO FEDERAL SAFETY
REQUIREMENTS IN ADDITION TO THESE
GRADES
Quality grades can be found, where applicable,
on the tire sid ...
Unleaded fuel
Each Volvo has a three-way catalytic converter
and must use only unleaded gasoline. U.S. and
Canadian regulations require that pumps delivering
unleaded gasoline be labeled "UNLEADED". ...
Air vents in the door pillars
a Closed
b Open
c Horizontal airflow
d Vertical airflow
Direct the outer air vents toward the side windows
to defrost.
Direct the vents into the passenger compartment
to help maintain the d ...
