One of the last Lancias had a five year gestation from concept car to production. In this case there were two concepts, a real one and a pre-production model. One of them was not helpful.
Lancia showed 2003 Lancia Granturismo Stilnovo Barcelona motor show as a genuine kite-flying concept car, one of quite a few they showed around this time. Three years later these ideas were translated into the production ready 2006 Lancia Delta HPE concept revealed at the Venice International Film Festival which then took a remarkable 2 years to get to an official launch by which time the styling had staled somewhat. You have to look at the 2006 and 2008 cars side by side to notice any difference so we can conclude the 2006 car is not a real concept at all. The production Lancia Delta (Type 844) was unveiled at the 2008 Geneva Motor Show. It was based on the long wheelbase of the Fiat C-platform. The car had a decent choice of engines too: available at launch were 120 PS, and 150
PS 1.4 L Turbojet petrol engines, and 1.6 L 120 PS MultiJet diesel, 2.0 Multijet with 165 PS and 1.9 Twinturbo Multijet with 190 PS. A new petrol unit was launched later: 1.8 Di Turbojet with 200 PS (147 kW). Those details are from Wikipedia. All in all, it was a
pretty fast and distinctive vehicle but about as popular as rabies. In 2008 Gavin Green at Car wrote: “It’s a huge improvement on the mostly rather anodyne Lancias that last corroded on UK shores. Its main appeal is that it is genuinely different from anything
else in the class. Now being ‘different’, of course, can be good (think Apple computers) or bad (think Michael Jackson makeover).” The main points to note were the fact it was midway in size between Golf-class cars and the segment above and the rather
charming upholstery options (don´t laugh – look at how monotonous car interior fabrics are these days). What survived the process going from concept to production were the
details but the proportions changed. I´d argue that productionising the 2003 car would have been a better bet rather than trying to make an odd-package like the LWB c-platform work.