hmm look at some of those pics; it has real 4 wheel disc brakes (in the second one only 2 and they're not very big... at least not big enough to stop something going 300 km/h) and has real electronics, possibly suspension too. I bet it can probably drive... just not very fast. It's kind of like the Taiki which actually has a real rotary engine in it, just not very powerful. It's just enough to get it on and off the ramp of the transport and into the showroom.
Edit: I take that brake size comment back... comparing the proportions of everything, like the guys' heads and the steering wheel: those brakes are actually quite large. I'm not quite sure I know what to say about it now; other than the possibility that they are there just for looks... but then why are there wires connecting to all 4 of them? Surely you'd only need 2 working brakes to hold what basically, should amount to a very lightweight shell, on the show floor and in the transport. I still don't believe there is any kind of [Substantial] drivetrain in this concept, if there is one...
http://www.flickr.com/photos/nivalle/2907964767/sizes/l/
http://www.flickr.com/photos/nivalle/2908805866/sizes/l/
http://www.flickr.com/photos/nivalle/2908809896/sizes/l/
http://www.flickr.com/photos/nivalle/2907965883/sizes/l/
However, what a lot of people don't seem to understand here, is that a high powered electric engined car is very possible and real at this very moment (albeit not 700+ horsepower).
Take a look at the Tesla Roadster for instance. It has a 248 horsepower purely electric engine with 276 ft/lbs of torque, and can go from 0-60 in 3.7-3.9 seconds with a top speed of over 160mph (125 mph electronically limited). It has a decent range of 220 miles per charge! (EPA combined city/highway cycle). It also has only one gear, just like the Citroen. The reason for that is because, unlike combustion engines, the Tesla's electric motor can offer maximum torque up til about 6,500 RPM (nearly halfway through the RPM range, it revs up to 14,000) and does not begin to fall off until that point. It also continues to offer a fairly high amount of torque even at the top end! These things only need one gear!
The Tesla Roadster is based on a modified version of the Lotus Elise 111r chassis and body; therefore it maintains the excellent weight balance/distribution that contributes to the award winning handling of the the Elise! Lotus engineers even helped Tesla Motors in the re-design stage to ensure that the balance was properly maintained; even with the bit of extra weight and different geometry that the drivetrain, motor, battery assembly, and other necessary components have. It weighs 2,723 lbs, which is a little over 600 lbs more than a Lotus Exige; that's primarily the fault of the large battery pack. Lotus factories manufacture and assemble all components on the Tesla; except the body, drivetrain, motor, battery assembly, and transmission, which is built and then sent to them by Tesla Motors. So it is essentially a collab project.
http://www.teslamotors.com/performance/perf_specs.php
This car is on the market right now! Albeit... it is relatively expensive as a 248 HP sportscar goes... but it's gotten awesome reviews so far; especially after a few transmission problems were fixed!
Edit: To note, the Citroen GT concept's engine noise sounds almost identical to the Tesla! I wonder if PD actually recorded the sounds from the Tesla...