This is a Lancair 4P:
It is a kit built plane made mostly out of pre-preg carbon fibre and Nomex honeycomb core. It has a pressurized cabin that carries four people and cruises at 330 mph at an altitude of 24,000 feet with a range of 1550 miles and sufficient payload for lots of SCUBA gear and assorted toys. It can be fitted with a 6-cylinder engine or a turbine.