Because of cell slicing and assembly constraints they're also not friendly to aerodynamics without making the target vehicle unsuitable for
normal road operations.
Not exact matches
A «bounce and jounce» test (where you bounce the vehicle's corners while stationary) works to some extent, but will not test the fast stage valving in the shock and you may miss
road handling characteristics that may be unfavorable / noisy or otherwise undetectable except during
normal operation.
And with hundreds of thousands of vehicles on the
road today, Tesla touted its method of «shadow - testing» its autonomous capabilities, by which the company collects anonymized data from its fleet of customer - owned vehicles during
normal driving
operations.