The soft top roof and new
lightweight chassis techniques, as well as some Toyota roadster know - how, should enable this new BMW Z4 to get closer to Porsche's famous Boxster than ever before.
Not exact matches
Built on Audi's
lightweight aluminium space frame, the R8 Spyder V10 Plus benefits from the construction
techniques used in the regular R8 Spyder, which means a combination of aluminium and carbonfibre at its core and the stiffest possible
chassis.
With the extensive use of modern construction
techniques and high - and ultra-high strength steels, Alltrack's
chassis manages to remain
lightweight despite its upscale features and enhanced crash structure.