Why do cars have air-filled tires? And why do spring suspensions exist as separate entities? What if someone just made tires out of springs, wouldn’t that kill two birds with the same stone? Moreover, spring tires would be more durable, wouldn’t require air, and could therefore never get punctured. All of these questions make a lot of sense, and to be honest, Germans even experimented with spring tires in the 1900s during rubber shortages, but soon reverted back to good-old air-filled...

Continue Reading With Springs for Tires, this SUV is Breaking All the Rules to Test a Simple Theory