One is tempted suggest the use of an umbrella or perhaps some kind of hat. But this would be unfair because in these recessionary times, even the owners of performance motor vehicles from manufacturers such as Porsche are finding themselves vulnerable under the strain of the ever-increasing costs of automotive up keep. I am there fore assuming that your leaky roofed Porsche is a, shall we say, vintage model dating to the pre-mobile phone nineties or even earlier. This assumed you may want to check the top seals and ensure the windows are correctly aligned and closing fully, both of which are common causes of leakage. Sealing the windshield across the seam with Duct tape often reduces the cachet of premium brand cars, especially when dating. So if all else fails I would recommend a trip to your local Porsche dealer they will undoubtedly be able to help. Who knows they may even offer you a fabulous deal on one of the great new Porsches such as the fabulously watertight Caymen S.

http://www.porsche.com/usa/models/cayman/cayman-s/