Porsche 944S2 Cabriolet, 1990. The 944S2 cabriolet had low production numbers and was only made a couple years. The 3 litre 208 hp engine mated with the 5-speed transmission gave it a top speed of 150 MPH and a 0-60 MPH time of just 6 seconds. This very nice example has just 89,800 miles. Power windows and A/C makes this a fast and comfortable neo-classic with good investment potential. $17,995.