Price and gearbox will be a big consideration. If you want a fairly modern car, manual box and 350 - 400Hp, there aren't a lot of options. This is how I ended up with a Z4M (343Hp) and a Cayman S (325 Hp). Both cars are a hoot to drive and I find them a lot more fun than my Supras were, that said, they are smaller, lighter and 6 Cylinder, NA.
Keeping away from anything "chavvy", you are looking at Jag F type, but limited to 380Hp manual in a heavy car. The 450Hp is auto only. Lotus Evora, Porsche 997 or 991, Aston Vantage. E92 M3 etc. Manual gearboxes are not that easy to find these days. I can't think of many others that are appealing. Mustang? 370Z Nismo?
H.