A replica right - not the real thing? You'll pay a premium for a D over a Speedster replica. It is as weather proof as a convertible 356 gets. Guess you could cut off windshield, remove windup glass side windows, dump the hi-bow top - and convert it to a drafty, leaky Speedster -- and save couple hundred # in weight. But why? If it's a good deal - buy it and swap for a Speedster.