I'll ask another way 300 vs 350
 

If you were looking at 2 identically optioned cars with 60,000 miles
the first a 2006 gs300 for X price
how much more would you be willing to spend for a 2007 gs350 with the same miles and options

Different people are going to base that on different factors, so it really only matters how much more you would be willing to spend.

Edit-

Let me be less of a *#*# about it...perhaps a hypothetical (or real) pricing scenario would yield some discussion that might be helpful to you in making or backing-up your decision. Give the prices - $2X,000 vs $2X,000 - and ask which would forum members pick/why?

I really think that your initial question is too vague and open-ended.

Step 1: Determine how much you want to spend on a car.
Step 2: Buy the best car you can find for that money.
Step 3: Enjoy whatever you end up with.

Start with a budget and work with that, not the other way around, that's how people make themselves poor.

i agree with jay. get a car that you feel comfortable with the price, that way you always end up with the car you really enjoy

Most 350 has the shark fin. 300 doesnt

shark fin > no shark fin

therefore, go with 350.

I would say the difference would be worth about 3000 given same mileage and options...this is based on KBB value and the inherent interest in the newer "better" model

Is the shark fin the "wing" on the trunk lid? If so, my 06 GS300 has it. Also, I believe the GS300 will get better fuel economy based on having a 3 liter engine vs a 3.5 in the 2007. I am very pleased with my 06.

No it's the protrusion on the rear of the roof.

four thousand on average, but if same mileage, then maybe 3500.

:uh: Not sure about that statement. Not everyone cares for it. Completely subjective, IMHO.

I love my 350. If you get a 300 and love it, then that's all that matters. Test drive both of these two identical cars (I know this is a hypothetical question) and you will know what that extra amount is that YOU'RE willing to pay.

lol i for one don't care about the shark fin. it's ok, but without it i don't think the car looks worse :)

haha yeah, to each his own. personally, the shark fin is a statement - it says yes, this is a luxury car. But I guess it comes down to fuel consumption and power. and of course cost, but make sure you dont regret it after the purchase.

Someone needs to do their homework.

2006 3GS:
19 city/27 hwy for RWD
19 city/25 hwy for AWD
http://www.fueleconomy.gov/FEG/bymod...Lexus_GS.shtml

2007 3GS:
19 city/26 hwy for RWD
18 city/25 hwy for AWD
http://www.fueleconomy.gov/FEG/bymod...Lexus_GS.shtml

I'd be willing to spend 5k for the updated navi, about 60 more hp, and bigger brakes.

^

yep true.