That site doesn't make obvious the cold temperature warnings for the Sprint Classic. I'm also confused by the M+S rating.
I know it won't matter for those where tires are removed from the car and the cars get put away for several months each year. But for others who would be well served by an all-season tire, they're not an option. From the Sprint Classic listing over at Tire Rack:
"The Sprint Classic is Vredestein's Grand Touring Summer tire developed for drivers of classic automobiles who want a tire with vintage style combined with modern technology. Like all summer tires, the Sprint Classic is not intended to be serviced, stored nor driven in near- and below-freezing temperatures, through snow or on ice."
and
"Note: Tires exposed to temperatures of 20 degrees F (-7 degrees C) or lower must be permitted to gradually return to temperatures of at least 40 degrees F (5 degrees C) for at least 24 hours before they are flexed in any manner, such as by adjusting inflation pressures, mounting them on wheels, or using them to support, roll or drive a vehicle."
Cheers