I understand the MQB platform is a fair chunk lighter than the outgoign models which is why with some engine tweaks (same basic lump the MPG and CO2 has been greatly improved.
Well yes, there's a lot of talk about this, but I've not seen any figures on the subject yet, which is what's needed.
THis is what is said of the new MQB A3.
Like larger Audis, the adaptive cruise control system will automatically bring the car to a halt and resume progress in heavy traffic – if an automatic transmission is fitted.
These extra features do not come at a weight penalty, as the new A3 will weigh from 1175kg in base 1.4-litre TFSI form – around 80kg less than the car it replaces – despite being the same size as before.
Audi said the investment in reducing the A3’s weight was made possible by the MQB platform’s increased standardisation, which lowers the development and production costs.
The occupant cell is 25kg lighter due to the extensive use of form-hardened steels, while the bonnet, front wings and part of the frontal crash structure save a further 10.5kg as they are made from aluminium.
So the same ballpark should apply to the Golf.
Current figures are very disappointing (copied from another forum). If correct the Golf has more steel versus aluminium compared to the new A3.
The 75-100Kg weight savings have evaporated into much less (unless the kit has significantly improved).
MK-71.2 85PS 1205 (5-speed manual) 24KG saving
1.4 140PS 1270 (6-speed manual) 20KG saving
1.6 105PS 1295 (5-speed manual) 19KG saving
MK-61.2 85PS 1229 (5-speed manual)
1.4 122PS 1290 (6-speed manual)
1.6 105PS 1314 (5-speed manual)
Sourceshttp://www.volkswagen.co.uk/new/golf-vi/which-model/engines/overviewhttp://www.volkswagen.de/content/medialib/vwd4/de/dialog/pdf/golf-a7/preisliste/_jcr_content/renditions/rendition.download_attachment.file/golf_preisliste.pdf
