I think all new production is based on the Global
6500, which gains an extra 600 nm of range over the 6000 (6000 nm to 6600 nm) , if BBD marketing is to be believed. I believe the 7500/8000 are substantially different from the 6000/6500, so integrating that big old radar and other systems might be a substantial effort. But yes, a Global 8000 is reputed to have an 8000 nm range, so a substantial improvement. I wonder if this platform is able to accommodate two crews?
The flagship for a new era
bombardier.com