Motor shows are dying. Attendance numbers are dropping. Manufacturers don't want to spend the money to show up with concept cars and thus the downward spiral becomes self perpetuating. To be honest I can't blame the manufacturers. Building flashy concept cars to get the attention of punters / tyre kickers at these events is not a cheap exercise. In a past life I was involved in a few concept car builds for some motor shows with Fix Or Repair Daily. We'd easily spend 250k* plus on a one off concept car that was no more than a fibreglass shell on top of a rolling floor pan from some donor vehicle we'd pulled out of the crashed car compound out the back of the garages. Literally no steering (kick the wheels), no powertrain, no interior, probably a cable hand brake somewhere hidden underneath the car to stop it rolling away.
*I'm talking about just build cost here, no design time or modelling etc.
Thats a lot of wasted money down the gurgler when reality is a lot of concept cars will never go anywhere near making it to market. Much easier to drop a cool render and get all the fan boys frothing over that instead of actually committing real $$$ to building something.
So now instead they turn up to the shows with their current line-up and wonder why everyone goes "meh".
Anyway I'll stop shouting at the clouds, I'm probably a bit bitter and twisted cos I miss playing with cool toys that'd machine the entire exterior surface of a car out of a huge block of foam.