The phrase "weight savings" means reducing the amount of weight or mass of something, usually in order to make it lighter or more efficient. Full definition
Look for weight savings of around 100 kilograms compared to the current A4. (mercedesblog.com)
For starters, the 8.0 - liter W - 12 claims 95 percent new parts, many of which are now titanium and carbon fiber for weight savings. (automobilemag.com)
With weight savings of up to 480 kg compared to the previous model, both efficiency and performance take large steps forward. (evo.co.uk)