It may just be a question of sanity.....choices, choices.......have you ever purchased a car before?
I cannot imagine anyone needing more power than the refined acceleration provided by the GS300. I purchased an '04 GS300 about a month ago. My last car was a MB E300. The GS is much faster than the Mercedes, although the MB soaks up the bumps better and as an aside, has the best seats ever devised by man (or engineer) But my point is the acceleration in this car is quite enough for me. Point of fact, I was recntly in a situation where I had to pass two semis on a two lane road. Without the transmission even kicking down a gear, I passed them both going from 55mph to 95mph in the space of both vehicles. Frankly I was surprised to see how fast I was going at the end of the passing zone. Had I goosed it, I am sure I would have been going over 100mph. Why bother with a V8, unless you are into drag racing.