Such a thing as narrow, low-profile tires?

[StorminMatt]

Does anyone know if there is such a thing? I have never heard of anything but wider, low-profile tires. But a narrow AND low-profile tire would be the ultimate fuel economy tire. Unlike high-profile tires, low-profile tires flex less as they turn, which decreases internal losses. This is why road bikes (bicycles) ALWAYS use narrow, but low profile tires (unlike mountain bikes). Also, low profile tires handle better. Not only does this make a car more enjoyable to drive. It also allows you to take turns faster, which decreases losses that result from braking before a turn, and needing to re-accelerate afterwards. Of course, despite these advantages, I have never heard of such a tire. To the best of my knowledge, ALL narrow tires are ridiculously high-profile.