There's some cool new diecast due for release this year from Revell and Minichamps:
08975 = Porsche 914 1969 blue - 1:18 Revell
08976 = Porsche 914 1969 yellow - 1:18 Revell
241245004 = VW KARMANN GHIA COUPE 1970 ORANGE - 1:24 Minichamps
430055304 = VW 1600 TYPE 3 NOTCH BACK BEIGE - 1:43
431051201 = VW EXPORT 1951 GREEN WITH ENGINE DETAIL - 1:43 Minichamps
100051021 = VW 1600 TL FAST BACK 1970 TURQUOISE - 1:18 Minichamps
100051011 = VW 1600L VARIANT SQUAREBACK 1970 BLUE - 1:18 Minichamps
430055006 = VW 1302 S SUPER BEETLE 1970 SILVER - 1:43 Minichamps
430055109 = VW 1303 S 1974 ORANGE - 1:43 Minichamps
430051041 = VW KARMANN GHIA CABRIOLET 1957 RED - 1:43 Minichamps
430065668 = VW-PORSCHE 914/4 1973 GREEN - 1:43 Minichamps
241245015 = VW KARMANN GHIA CONVERTIBLE 1970 GREEN - 1:24 Minichamps
430055039 = VW 1302 CABRIOLET 1970 TURQUOISE - 1:43 Minichamps
430055139 = VW 1303 CABRIOLET 1974 GREEN - 1:43 Minichamps
430050222 = VW KARMANN GHIA Type 34 1966 DARK RED - 1:43 Minichamps
430051025 = VW KARMANN GHIA COUPE 1955 BLUE - 1:43 Minichamps
As well, Minichamps just released a gorgeous 1:18 1941 Type 82 Kubelwagen