But as art, concept cars serve a purpose as examples of what an automaker's design department can do when given a huge budget, few parameters, and no practicality or production concerns.
We can hope automobile manufacturers will be able to keep a few secrets in the lead up to January 2015's North American International Auto Show in Detroit, Michigan. Maybe there will be something special, not just production versions of upcoming luxury crossovers and flashier potential versions of existing cars, but truly special design.
Interesting surfaces. Inventive detailing. New ideas.
If so, this list will be in need of an update. Heading in to the Detroit auto show, however, these are our 26 favourites of the 21st century. You will disagree. Wholeheartedly, we suspect.
26. Dodge Kahuna
Both ahead of and behind the times, the Kahuna is just one of a dozen or more Chrysler Group concepts we could have placed on this list if we weren't interested in spreading the wealth around.
25. Lexus LF-LC
The LF-LC is an opinion divider, but it signaled that Lexus could break free from convention. Quite nicely.
24. Jeep Willys 2
Is it easier for Jeep to impress us with something crazy because the core elements never change? Or is it more difficult because there are untouchable elements?
23. Volvo T6 Roadster
Some concepts are great because they fit the image of the company. Others, like the T6 Roadster, are perfect because they come completely out of the blue.
22. Mazda Ibuki
This is not what all Miata enthusiasts wanted to see, but it was a whole new take, vital for a car that could have devolved into a painfully slow evolutionary process.
21. Hyundai HCD-14
The HCD is a little bit crazy. OK, it's a lot a bit crazy. It's very, truly, overwhelmingly crazy. But it works.
20. Ford Bronco
Ford has introduced a number of brutish, silver truck concepts. This is the best of the bunch.
19. Chevrolet Nomad
It mixes retro and originality rather than just relying on the work a designer completed 40 years ago.
18. Volvo 3CC
Blissfully abnormal, but with a purpose.
17. Lamborghini Estoque
Yes, the modern Miura concept is more eye-catching, but it's not original. This sharp-edged knife of a sedan is modern Lamborghini at its best.
16. Infiniti Essence
It's very curvy and flowy and long and low and wide.
15. Chevrolet Code 130R
This is perfect for making auto writers say, "But Chevy, there really is a market for this." Probably not.
14. Buick Velite
They'll give us a version of the Opel Cascada. This would be so much more in keeping with Buick's premium history.
13. Ford Interceptor
12. Dodge M80
It'd be a Ram if they introduced it now. Regardless, it strikes a nice balance between outlandish and realistic.
11. Dodge Hornet
It's not pretty, but it's a Dodge subcompact with proper Dodge attitude.
10. Kia GT4 Stinger
On a list full of stuff that won't or didn't or can't happen, the GT4 Stinger might have a future.
9. Mazda Shinari
The production 6 looks good. But with no limitations, Mazda can do way better.
8. Volvo Coupe
Classic proportions mix with Volvo's classic and modern flavours.
7. Toyota FT-1
When TVR takes over Toyota.
6. Ford Start
5. BMW X Coupe
Bangle themes - on the right day, in the right light, in the right mood - pleased the right (or wrong?) person.
4. Volvo XC Coupe
Just not quite as good as #3.
3. Volvo Estate
Nobody does wagons like Volvo. Volvo, unfortunately, doesn't do wagons like this.
2. Cadillac Sixteen
Why is the Escalade SUV left on its own to be a big, bold, high-priced Cadillac?
1. Volkswagen Bulli
Take my money.