I was also thinking of the Mazda / Duratec line of motors. Along with the Millenia S motor. Specifically the 30 or 35. These are probably cheaper and easy to source than the 37 but oh would a 37 be a hoot in an rx7/rx8 and yes they are made for RWD cars!!!!. (Think Mustang or a Mazda CX-9) The CX-9 motors have been around for a while now and although only rated at 272 HP I bet they may be a bargain as compared to the other variants of the 37's that are in other cars.. . .
Wiki said: Duratec 37 The Duratec 37 3.7 L (3721 cc; 227 CID) V6 is another member of the Ford Cyclone engine family. The Duratec 37's additional displacement over the Duratec 35 is achieved through a 3 mm (0.1 in) increase in bore diameter which results in a 95.5 mm (3.76 in) bore. It is currently produced at Lima Engine in Lima, Ohio and Cleveland Engine in Cleveland, Ohio. The engine was first introduced in the 2008 Mazda CX-9 under Mazda's MZI moniker and produced 273 hp (204 kW) at 6,250 rpm and 270 lb•ft (366 N•m) at 4,250 rpm.[8] The American assembled version seen in the 2009 Lincoln MKS produces 275 hp (205 kW) at 6,250 rpm and 276 lb•ft (374 N•m) at 4,250 rpm. A few days before the 2009 Los Angeles International Auto Show, Ford unveiled a new version of the Duratec 37 for the 2011 Mustang, making it the first Duratec-badged V6 used in a rear-wheel drive application since the Mondeo V6 in the Lincoln LS. The new version of the engine features Twin Independent Variable Cam Timing (Ti-VCT) and, thanks in part to the addition of this technology, makes 305 hp (227 kW) at 6,500 rpm and 280 lb•ft (380 N•m) at 4,250 rpm while delivering 31 mpg-US (7.6 L/100 km; 37 mpg-imp) highway mileage in the Mustang.[9][10] This RWD Ti-VCT version has also since been added to the engine lineup of the F-150 pickup for 2011. • 2008–2011 Mazda CX-9 • 2009– Mazda6: 272 hp (203 kW) at 6,250 rpm and 269 lb•ft (365 N•m) at 4,250 rpm • 2009– Lincoln MKS: 300 hp (224 kW) at 6,500 rpm and 280 lb•ft (380 N•m) at 4,000 rpm • 2010– Lincoln MKT: 268 hp (200 kW) at 6,250 rpm and 267 lb•ft (376 N•m) at 4,250 rpm • 2011– Ford Mustang: 305 hp (227 kW) at 6,500 rpm and 280 lb•ft (380 N•m) at 4,250 rpm • 2011– Ford Edge Sport: 305 hp (227 kW) at 6,500 rpm and 280 lb•ft (380 N•m) at 4,000 rpm • 2011– Lincoln MKX: 305 hp (227 kW) at 6,500 rpm and 280 lb•ft (380 N•m) at 4,000 rpm • 2011– Ford F-150: 302 hp (225 kW) at 6,500 rpm and 278 lb•ft (378 N•m) at 4,000 rpm • 2012– Ginetta G60: 310 hp (231 kW) at 6,500 rpm and 288 lb•ft (390 N•m) at 4,500 rpm
