Make an Offer – Lot 215 1973 Mercedes-Benz 450SL Convertible Roadster with Hardtop  Please use the form below to submit purchase commitment to Collector Car Canada.(You must be logged in.) Your name Your email Lot 215 - 1973 Mercedes-Benz 450SL Convertible Roadster with Hardtop - What is your offer? By submitting this form, I agree to pay Buyer Premium of 4.99% (minimum $499) if my offer is accepted.