Cheaper Materials - This version is roughly 20,000 BB cheaper than the MK2, all the while improving on existing design.
Shielded - It has shields now - a welcome addition to this aircraft.
Faster & Tougher - This version is capable of bursting at around 160 mph, compared to the previous version's 140 mph. Because this version doesn't use gyros, it's more capable of dog-fighting. It also uses Hawkeye parts, making it tougher overall. It's also designed to run without thruster fuel, albeit slower than normal.