For example, the changes to the car's glazing alone save 4.5 kg with a thinner windscreen and rear bulkhead glass, and replacing the engine cover with motorsport - style polycarbonate. (motor-prime.com)
Created to not only shed mass but lower the standard car's centre of gravity, the CS pack introduces a perspex engine cover with a manual latch, a lighter Gorilla Glass rear bulkhead window and carbon - fibre mirror caps, A-pillar and lower body trim. (motoring.com.au)
They also offer no means of storage — predictable, since most items would fall out, but considering space is at quite a premium in the SLS (a massive aluminum rear bulkhead eats up a considerable amount of interior space), it's quickly noticeable when attempting to stow even something as trivial as a sunglasses case. (automobilemag.com)