I also asked some other questions...

Are Ferrari chassis built by aluminum?

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Yes, many Ferrari models have chassis that are constructed using aluminum. Aluminum is a lightweight and strong material that is commonly used in high-performance automotive applications. Ferrari has been using aluminum in their vehicle chassis since the 1960s, and they continue to use it extensively in their modern vehicles.

Ferrari uses a variety of aluminum alloys and construction techniques in their chassis designs to achieve optimal strength and weight characteristics. They use techniques such as extrusion, casting, and sheet forming to create complex shapes and structures that are both strong and lightweight. In addition to aluminum, Ferrari also uses other advanced materials such as carbon fiber in some of their high-performance models.

Overall, the use of aluminum in Ferrari chassis helps to reduce weight and improve handling characteristics, while still maintaining the necessary strength and rigidity required for high-performance driving.
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Are Lamborghini chassis built by aluminum?

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Lamborghini uses a variety of materials in the construction of their vehicle chassis, depending on the specific model and intended use. Some Lamborghini models do feature aluminum components in their chassis design, but the specific materials and construction techniques can vary significantly.

For example, the Lamborghini Aventador uses a carbon fiber monocoque chassis with aluminum front and rear subframes. The Huracan also uses a hybrid chassis with a carbon fiber and aluminum construction, while the Urus SUV uses a combination of steel, aluminum, and composite materials in its chassis design.

Overall, Lamborghini uses a variety of advanced materials and construction techniques in their vehicle chassis to achieve optimal strength, stiffness, and weight characteristics. While aluminum is sometimes used in their chassis designs, Lamborghini also incorporates other advanced materials such as carbon fiber and composite materials to achieve their performance targets.
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I think American are also quite smart...

Recently, one of the highways nearby was reconstructed. Guess what... The new road becomes even more bumpy than before like some new highways in LA.

I think they may do it like that ON PURPOSE!!! As the road becomes slightly more bumpy, those high performance or stiffer suspension cars may need to slower down!!!(Preventing them from SPEEDING!!!) However, for those softer cars or family cars like Camry it could be negligible on those slightly more bumpy roads!!! (Wow! How smart they are!!!)

As to my GSF, I think it's not too bad since I soften my GSF's suspension recently. So, I still drive my GSF as fast as before, faster but not too fast... (Sorry! I have to say it again... Ohlins is REALLY good!!!)

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Another reason why I think they try to make the highway more bumpy is...

Actually the south bound of the highway was much worse but they reconstructed the north bound which was already much better than the south bound before the reconstruction...
(It doesn't matter the north bound or the south bound... My Ohlins is always good!!! Just remember "don't go TOO STIFF and make the same mistake as I did!!!")

PS: Please remember the stiffness of a car suspension is mainly decided by SPRINGS, not dampers!!!
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It seems ChatGPT doesn't know what it's doing... (Is my question too difficult??? )

My question: which car has more body rolls? miata nd or gsf

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The answer...

The Miata ND is known for having minimal body roll due to its well-tuned suspension and low center of gravity. On the other hand, the Lexus GS F (assuming that's what you meant by "gsf") is a larger and heavier sedan with a higher center of gravity, which may result in more noticeable body roll during cornering. However, it's worth noting that body roll can also depend on factors such as driving style, road conditions, and modifications made to the car's suspension.
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Like Porsche, not every Audi is created equally...

The tub of A8 is mainly made of Aluminum but it also adopts some steel and carbon fiber. However, the tub of A6 is mainly made of steel...

A8L



A6
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Toyota won again... If someone says this company cannot make good sports cars, I will definitely NOT believe it!!!
(Of course, some cars could be better than the others but the differences should be very subtle if they're in the same class. So, the reliability is the key!!!)

PS: So far the western countries are still leading this world. All the rules should be created mainly by them. So, it's definitely NOT easy for any companies not from those western countries!!! (You're playing THEIR games!!!)

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I also asked ChatGPT some questions about weights... (You may be a little surprised!!!)

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Question : what is the weight of the auto transmission of 2018 gs350?

Answer: The weight of the automatic transmission in a 2018 Lexus GS 350 can vary based on the specific model and configuration of the vehicle. However, according to the manufacturer's specifications, the 2018 Lexus GS 350 is equipped with an 8-speed automatic transmission that weighs approximately 90 kg (198.4 lbs).

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Question : what is the weight of the auto transmission of 2018 530i?

Answer: The weight of the automatic transmission of a 2018 BMW 530i varies depending on the specific model and configuration. However, according to BMW's official specifications, the ZF 8-speed automatic transmission used in the 2018 530i weighs approximately 90kg or 198lbs.

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Question : what is the weight of the auto transmission of 2018 M4?

Answer: The weight of the auto transmission of a 2018 BMW M4 can vary depending on the specific model and configuration. However, according to BMW, the weight of the M Double-clutch Transmission with Drivelogic for the 2018 M4 is approximately 99 pounds (44.8 kilograms).

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Question : what is the weight of the engine of 2018 GS350?

Answer: The 2018 Lexus GS 350 sedan is equipped with a 3.5-liter V6 engine. The weight of this engine is approximately 392 pounds (178 kilograms). It's important to note that this weight may vary slightly depending on the specific configuration and additional components of the engine.

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Question : what is the weight of the engine of 2018 530i?

Answer: The weight of the engine of the 2018 BMW 530i varies depending on whether it is equipped with a standard 2.0-liter 4-cylinder turbocharged engine or an optional 3.0-liter 6-cylinder turbocharged engine.

The 2.0-liter 4-cylinder engine weighs approximately 300 pounds (136 kilograms), while the 3.0-liter 6-cylinder engine weighs approximately 430 pounds (195 kilograms). However, it's important to note that these are rough estimates and actual weights may vary depending on specific configurations and options.

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Question : what is the weight of the engine of 2018 M4?

Answer: The weight of the engine in the 2018 BMW M4 can vary depending on the specific model and configuration. However, typically the engine weight for the 2018 BMW M4 would be around 400-500 pounds (181-227 kilograms). It's worth noting that the weight of the engine is just one component of the overall weight of the car, which can vary depending on the trim level, options, and other factors.

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Question : what is the weight of the engine of 2018 Q60?

Answer: The 2018 Infiniti Q60 was offered with three different engine options:

2.0-liter turbocharged inline 4-cylinder engine - This engine weighs approximately 348 pounds (158 kg).
3.0-liter twin-turbocharged V6 engine (300 horsepower) - This engine weighs approximately 408 pounds (185 kg).
3.0-liter twin-turbocharged V6 engine (400 horsepower) - This engine weighs approximately 430 pounds (195 kg).
It's important to note that the weight of the engine may vary slightly depending on the specific configuration and optional equipment selected.

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So, the major components of European cars are not light-weight!!! (Of course, only if the above information is correct!!!)
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Speaking of body rigidity... Recently I'm consider the below chassis braces from Toms to improve the rigidity of my current GSF... (This is another good thing about these reliable Japanese cars. We don't repair our cars but UPGRADE our cars, even though our cars are getting older!!!)

PS: I also found these Japanese Toms braces were amazing and better than those Ultra Racing braces in my son's G35S, as Toms braces wouldn't make any existing maintenance jobs on my GSF more difficult!!! (Of course, there are still more maintenance jobs on GSF, as it has a very special performance-oriented rear differential!!!)




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Speaking of differentials...

After I have played Assetto Corsa Competizione for over 500 hours, I now realize that a good differential is very important if you do 10/10th on tracks...

If the traction control is off or at a very low setting, when your car tries to get out of a corner with full throttle, a good differential could let your car ROTATED and get out of a corner like a dream!!!

(Of course, I never dare to do 10/10th on my GSF during cornering, so the TVD is actually not very useful for me just like the slip-limited differential in my son's G35S!!!)

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