Why do they put styrofoam in cars?

It's not Styrofoam, rather it's an acoustic polyurethane spray foam injected between panels to reduce noise, vibration, and harshness. read more

It’s not Styrofoam, rather it’s an acoustic polyurethane spray foam injected between panels to reduce noise, vibration, and harshness. read more

Injecting foam is not a new technique for chassis stiffening. The Infiniti Q45 uses this sort of foam in some of its chassis members to increase stiffness, as do a few other premium cars. In fact, the foam we chose is the foam recommended to repair damaged Q45s. read more