Omega B 3.0/3.2 vs. 2.5 TD ??? Many questions !!!

Hello, guys, I’m thinking about this, actually I’m a big friend of the 2.5 TD, but now I’m just thinking about it. Whether I’m going to buy another diesel or get a petrol truck and a gas truck???? And thought of a six-cylinder, is only 3,0 or 3,2 or maybe the 2.5 ??? I’m going around the 35,000 km a year and want to pull the best result in fun, cost and better Omega ́s My feeling is that the Omega ́s MV6 3.0 or 3.2 a better Au omega ́s of the same year of construction with 2.5 TD engine or do I see the wrong ???? What bothers me, however, that the MV 6 only exists with circuit or ??? Did I have understood in the other treat like this What have the MV 6 for diseases and then what is the fun to cure the diseases then in the case of entry??? Say only Krummer !!! Is a gas installation possible with the MV6 and if yes, has someone already experience with ??? questions about ask, but always with answers