You've got to wonder what the engineers were smoking when they came up with the formula for measuring tire size. They stuck not one but three systems in there. Decipher a P205/55R16 tire and you've got metric (it's 205 millimetres wide), a fraction (the sidewall is 55% of the tread) and Imperial (its diameter is 16 inches). Now there's genius at work. But I digress ...
I took this picture in Colorado last year, where I participated in a driving course to prove the superiority of winter tires in these conditions. (Note: they're winter tires, not snow tires, and they're vastly better than all-seasons even on dry pavement in winter temperatures. But that's a rant for another day.)
One thing I've never been able to figure out is why tire manufacturers have never been able to sell safety the way car manufacturers have done. The automakers have done an incredible job. They've got consumers demanding safety systems when they haven't a clue how they work. Years ago I taught a series of "how your car works" clinics, and without fail, whenever I got to ABS and ESC and airbags, I'd get blank stares from people who'd willingly paid extra (they were all options back then) to get them on their vehicles. That goes to show you the power of that marketing.
But tires? Show me an average car owner who doesn't buy tires primarily on price, and when he does, it's a grudge purchase because his old ones are worn out.
Here's a fact: the only things keeping your vehicle on the road are four rubber contact patches that add up to an area roughly the size of a sheet of typing paper. There isn't a safety feature on your car, from anti-lock brakes to airbags, that isn't there for the purpose of trying to get your butt out of the fire after your tires have lost their grip on the asphalt.
And yet the essential importance of having good-quality, season-specific, well-maintained tires as the very cornerstone of vehicle safety has bypassed almost every motorist on the road.
I just don't get it. Maybe it's the advertising -- save for a couple of ultimately ineffective ads, like the baby riding in a tire, the whole this is where safety starts message doesn't seem to be there. Maybe tires have been around so long that there's no way you can make them new and exciting, the way the fancy auto technology can be. All I know is that when I see a newer Volvo wearing bald tires in the winter, as I did a couple of days ago, the message just isn't getting across. And as long as it doesn't, we're going to be left with cars that have to try to do what their tires simply couldn't.