How is the stability of the Mazda CX5 on highways? Does the car remain stable at high speeds?

Does this car feel unstable at high speeds?

How does the FJ perform on the highway? What's the engine RPM at a speed of 120 mph?

Does anyone experience a situation where, while driving a manual transmission car at high speed, the RPM suddenly goes up but the speed remains the same?

I'd like to ask Mazda 5 owners, why is the noise level so high in this car? How can it be resolved, and how do you deal with valve cover oil leakage? What are your Mazda 5's fuel consumption rates in the city and on the highway? My 2011 automatic Mazda 5 costs 0.9 RMB per kilometer in the city.

How does the Kia Pegas perform on the highway? Is the chassis stable?

I want to ask how fast this car can go at top speed on the highway.

I've heard this car handles well. How does it perform on the highway? Is it stable around 130 km/h?

How fast can this car go on the highway if there's no speed limit? Does anyone know?

Dear Genesis car owners, have you used the built-in ETC? How's the performance? Does it recognize properly when entering and exiting highways? Is it stable?

How is the stability of the 2.0T Nissan Altima? Does it drift easily, and is the fuel consumption particularly high? How about the stability of the three major components, and does it tend to have many issues?