Why car designers don't make any asymmetric car?
Actually, many BMW cars are built without symmetry, based on a driver's position in the car, and a few other factors of course. Additionally, tires, headlights, and many more cars 'elements' have recently abandoned their use of symmetry to improve design.
Many Yatchs and sailboat achieve better performance and balance using asymmetry.
Even Apple computers has used assymmetrical fan design, it nominalizes the flow of air & sound.
I'm almost certain it's used everywhere today in manufacturing, including a majority of car manufacturers.