Question: The Mitsubishi 6B3 engine is an engine range with only one 3.0-litre V6 currently developed for a second generation mid-size crossover that was sold at Japan dealership chain called what? 
Sentence (from "Lexus GX"): Lexus later released a lower displacement GX 400 in 2012 for the Chinese market, with a 4.0-liter V6 engine.
Relevant evidence: No