Modern cars' complex systems perform all the foregoing functions, with the exception of assisting in the preservation of resale value.
- It includes complex electrical, electronic, or physical systems that are meant to enhance economy, decrease emissions, or keep vehicle passengers safe.
- The primary systems of a car are the engines, fuel tank, gearbox, electrical grid, cooling & lubricating system.
- In this, the chassis comprises the suspension, braking system, rims, and bodywork.
- Modern cars' sophisticated systems fulfill all of the foregoing purposes, except for assisting in the retention and residual value.
Therefore, the answer is "helping retain resale value".
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