Looks like a pretty standard sedan from any company from that era to me, just with a Citroen grill and fancy rims.
Put that grill on a BMW 6 series from that time, looks about the same.
Unbelievably unimaginable compared to the sedans on the road today, I see those types of cars everywhere? Not sure what's supposed to be the "concept" besides the "gills" or whatever it's called.
It wouldn't. Compare Chevrolet volt concept car with actual Chevrolet volt car.
That car was a clusterfuck from beginning to end. They rather wanted it to compete with the Prius after the initial design phase. They just ended up making the same car but worse and twice as expensive. Not surprising that they pulled the plug eventually.