McLaren explains how the Elva speedster keeps its cabin calm even at 70 mph

Speedsters are a joy to drive, but without a windshield present the pleasure can quickly turn to discomfort—unless you happen to be carrying a helmet with you. In addition to wind, insects and tiny stones are thrown your way. If you don't believe us, just take a look at the front of your car after a long drive on the highway. McLaren has...