HondaJet
The HondaJet may be expensive at $3.7M, but it is also the fastest airplane in this group having a lot to do with the meticulous research and development done by Honda over the years. I have been following the aerodynamic development of it a long time. Honda publishes scholarly papers on their work through AIAA (Amercian Institute of Aeronautics and Astronautics). Low drag coefficients are their best achievement, the over-wing engine mounting and laminar flow airfoils provide very low drag. Consequently, it is or will be the fastest VLJ on the market at about 420 kts.