300 vs 400
Depends on what is there point of view. GS300 gas mileage is only better by 2mph on the highway. Second, people like to do the supra engine swap and do other mods. On the other hand GS400 is already 300 hp, not necessary needs to be modified if wished. That is just some ideas and how I see it.
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Not sure if thats a valid comment sir
Who said it was an option? If it were an option, why would they have a different name. You go in asking for a GS400/430 not, "Hey, I'd like a GS300, but I want it with a v8" 
again as I said before (as well as others) Why does one say the 400 is better and why do some say the 300 is better? One will argue that its easier to modify a 300 because of the market while the 400/430 is hard to find much support for. If we're talking stock for stock and using a car only for what it was meant to, well... But if one wants to mod, then thats why one would say the 300 is better.
Who said it was an option? If it were an option, why would they have a different name. You go in asking for a GS400/430 not, "Hey, I'd like a GS300, but I want it with a v8" 
again as I said before (as well as others) Why does one say the 400 is better and why do some say the 300 is better? One will argue that its easier to modify a 300 because of the market while the 400/430 is hard to find much support for. If we're talking stock for stock and using a car only for what it was meant to, well... But if one wants to mod, then thats why one would say the 300 is better.
GS4 has the v8 rumble with a simple drop in air filter it sounds a lot richer than my Infiniti FX. Not to mention the gas mileage for a V8 is pretty damn good. Better than all my V6 cars.







