[jamiey]

In many ways the i3 and i8 are proof of concepts for mass production of Carbon cars.

The trickle down has started with the 7 'er and will continue with next year's 5'er.

The main issue for mass is that people expect a certain kind of comfort in what could be their daily driver.

My Elise is 755KG (1665lbs) but that has wind up windows, no a/c, no airbags, no abs, two seats that are thinner than most sandwiches, no carpets and bare trim everywhere.

Jaguar use similar extruded Aluminium tech to make the XE and XF, but once all the equipment and safety kit is added then the mass increases to around 3 'er levels. Then you need to increase the power to get the "required" performance, which requires cooling so more mass... And So on.