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Differences between RX350 vs. RX330

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Old 05-08-06, 08:09 AM   #1
vinster29
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Default Differences between RX350 vs. RX330

Has anyone figured out all the new changes made to the RX350 versus the RX330. I read somewhere that their are 27 new changes that have been made to the RX350. Has anyone figured all of them out yet?
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Old 05-08-06, 10:14 AM   #2
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The jist are bigger engine, different transmission, 5th gen nav and all the additional stuff such as noise reducing windshield to make it quieter.
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Old 05-08-06, 11:16 AM   #3
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That's pretty much it. I picked up a 350 brochure and compared it to my 04 330 brochure, and all the accessories and options and standard equipment are the same. Even the colors are the same.

For all practical purposes, you get a slightly larger engine, although I have heard that there is a greater difference in performance between a 300 and a 330 than betweeen a 330 and a 350 -- but I have not driven a 350.

It sure looks the same.
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Old 05-09-06, 07:05 AM   #4
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Sure hope they got rid of the dash noises(rattles).

If I don't read that they are back we just may go back to a RX 350 this fall. If they are still there its over to the Caddy Dealer.
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Old 05-18-06, 01:00 PM   #5
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Quote:
Originally Posted by xfirechief
Sure hope they got rid of the dash noises(rattles).

If I don't read that they are back we just may go back to a RX 350 this fall. If they are still there its over to the Caddy Dealer.

Well then you will have more rattles than your dash. LOL
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Old 05-22-06, 07:30 AM   #6
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Quote:
Originally Posted by LEXIRX330
Well then you will have more rattles than your dash. LOL
Maybe if he is going to have to have an imperfect car one way or the other - he would rather support the domestic economy?
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Old 05-28-06, 04:40 PM   #7
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One reason for the less impressive performance improvement with 50 new HP is the change in the final drive ratio on the RX350 (lower)
RX 330 3.48
RX 350 3.29
This improves gas mileage, but decreases performance.
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Old 06-01-06, 09:34 PM   #8
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it has plenty of performance for me-its an SUV after all. can't have to much gas mileage (22-24 combined after 5 tanks)
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Old 06-01-06, 11:00 PM   #9
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Quote:
Originally Posted by drfishalot
it has plenty of performance for me-its an SUV after all. can't have to much gas mileage (22-24 combined after 5 tanks)
I agree, sort of S in SUV means Sport. To me, Sport should mean performance.

Aloha
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Old 06-02-06, 06:48 AM   #10
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As far as I know, the changes are:

larger 3.5L engine
knee airbag
tranny is the same with different gearing
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Old 06-02-06, 07:38 AM   #11
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The RX350 also has soundproofing improvements. The wind noise in my RX350 seems lower than I remember in the RX330s I've driven. However, I wouldn't say that the wind and road noise are at "luxury sedan" levels, as some have said.
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Old 06-03-06, 04:28 PM   #12
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Quote:
Originally Posted by 2003LS430
As far as I know, the changes are:

larger 3.5L engine
knee airbag
tranny is the same with different gearing
Our RX330 has knee airbags-not new on the 350.
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Old 06-03-06, 08:08 PM   #13
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Was that an option or did the sales person lie to me (surprise)?
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Old 06-04-06, 07:14 PM   #14
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I noticed a few differences:
-Added a lower grill on the front bumper of the RX350. (Kinda a duh, since it's pretty obvious)
-Added a lower foot A/C vent in the rear seats.

Anyone know why sometimes when the windows are open at higher speeds, ie. highway speeds, the wind makes a high thumping noise. Occured in 2 RX330s I've been in, also happened in a X3.
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Old 06-05-06, 06:11 AM   #15
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Dark asks: "Anyone know why sometimes when the windows are open at higher speeds, ie. highway speeds, the wind makes a high thumping noise."

I'm not sure why, because I'm no engineer, but many cars do this under various conditions, the most common being when the sun roof is open and all the windows are closed. Sometimes just opening a single window makes it happen until you open another window. My guess is that you have 20 pounds of air rushing around inside a 10 pound box.

In my RX (like in my old Audi 5000) just opening the sun roof creates some mighty thumping. Crack a back window an inch or so and everything calms down.

It has something to do with the laws of physics, but I never studied AE so I don't know exactly what's going on.
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