However, they reckoned without the Tokyo motor show organisers. There is an elaborate system in the car world of 'A' spec motor shows and ''B' spec motor shows. Tokyo has long considered itself to sit alongside Detroit, Geneva, Frankfurt and Paris in the former category, but its status has waned in recent years, as manufacturers have preferred to concentrate on the more glitzy and less home-market dominated LA show.
How to solve this situation? Two years ago the Tokyo motor show organisers set the shows a few weeks apart. This year they have set them head-to-head, and to hell with anybody who disagrees. I kind of admire that stubbornness, and Tokyo's refusal to move aside for a 'second-rate' show, although it would help its cause if one of the homemakers can wheel out a hitherto unseen 'big bang' launch to add lustre to what is undoubtedly a broader amount of launches than LA has mustered. What the decidedly 'C' list Guangzhou show organisers are thinking is anybody's idea.
The result of this face-off is that car makers are spending a lot of money taking in both the LA and Tokyo shows, organising simultaneous launches of the same car at the same time and generally doing twice the amount of work they would otherwise have done. Oh, and the highlight of Guangzhou appears to be the launch of the facelifted Lexus CT200h.
For car lovers like you and I, this is hardly the end of the world: we'll get to see a lot of new metal over the course of this week, hear from twice as many industry executives about their machinery and revel in a longer avalanche of information coming our way. The team at autocar.co.uk will be sifting the wheat from the chaff, and we'll be sure to bring you the best of it from around the world. Exciting stuff.
But what it says about the car industry itself is more worrying. What its executives and engineers can achieve with their combined brain power is at times staggering; we'll get plenty of evidence of that as the covers come off the various cars over the next few days. How on earth these big brains can then preside over companies that have allowed this situation of having three shows in one week arise is quite another thing.
Put simply, motor shows are surely all about drawing attention to new products. And much though we all love new products, surely spacing out the reveals from each other is in everybody's interests?