the supercharger makes the puny 1.6 drive like a V6, boosting torque from off idle - then the big turbo takes over
Have your cake and eat it too. Lacks nothing during the whole rev range. Every single turbo compromises
The turbo-to-supercharger 'transition' is the tricky part
HKS made the aftermarket turbo add-on kit for factory supercharged 4AGEs, making the early MR2 "twincharged"