The future of tyres: the latest tech and eco tyres
Tall and narrow BridgestoneExpect to see it: Now Even though the new all-electric BMW i3 is a compact city car, its wheels are a whopping 19 inches in diameter. But this size wasn’t just chosen to make concept versions look sporty; production models get these wheels, complete with far thinner tyres, featuring a skinny profile of 155/70 R19. They help to save energy – not only do the wheels cover a greater distance with a greater diameter, but as they’re so slim, they cut through the air more efficiently, because they’re more aerodynamic – which means the car isn’t held back by dra...