Recently Car and Driver started doing 100-0 brake tests in addition to 70-0 braking. There was a comparison of 3 cars and the TLX Type S was one of them.
The best one was the Porsche Cayman (the Type S overshot double the distance of 70-0 at 100-0).

How important is this 100-0 braking metric?

https://www.caranddriver.com/feature...-braking-test/

 

I think it’s not particularly important unless you track the car. However, I think it’s a sobering point for people who believe the difference between 70mph and 100mph in terms of safety isn’t that big of a deal.

On a separate note, most EVs (and other heavy cars) are going to be crushed by this new test. Although interestingly, the over 3-ton Escalade V on all seasons has a shorter 100-0 stopping distance than the Type S on summers…

 

It's as important as the attentiveness of the driver and their skill. These are all variables also, as well as maintenance. What is the condition of the car when said braking is needed.

 

as fiatlux stated, it really shows how much braking capabilities you can lose above 70mph. I very rarely drive faster than 120 km/h (75 mph) if there's other cars on the road.

 

E=1/2 x M x V^2

Energy is equal to .5 times the mass times the velocity squared.

As the car increases in speed (velocity), the energy required to stop the car increases greatly. It's not a simple double the distance metric.

With how heavy a TLX-S is, and then the lack of any hybrid braking system to increase braking performance, that's the result we get.

I'd hope with some better pads the TLX-S would perform better...But then again Honda/Acura has a history of undersized brakes that tend to warp and need to be upgraded for any sort of spirited driving so the rotor cooling may be a limiting factor.

Not trying to justify the results here, but what tires were used on the TLX-S? Touring tires certainly won't help the test.

 

C&D used 20” Pirelli P Zeros (summer tires).

https://www.caranddriver.com/reviews...-type-s-drive/

 

The 70-0 of 177 ft for my 2.0 TLX is slightly below average. Some SUVs can do better than this. I’m scrutinizing this metric for sure on the next car.