Question: TheTata GenX Nano is developed from Tata Nano with an open-able rear door that swings upward to provide access to what? 
Sentence (from "Tata GenX Nano"): GenX Nano comes in 4 & 5 gear manual transmission and the 5 gear transmission system in GenX (AMT version) is the same as in Tata Zest diesel AMT.
Relevant evidence: No