Mercedes Benz Mercedes GLS500 (X166) Tires

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Tire Reviewed Dry Grip Wet Grip Feedback Handling Wear Comfort
Dunlop Grandtrek Winter M3 (1) 90% 100% 80% 100% 90% 70%
Continental ContiSportContact 5 SUV (34) 84% 80% 76% 80% 53% 70%

Mercedes Benz Mercedes GLS500 (X166) Tire Review Highlights

Writing about the Dunlop Grandtrek Winter M3 given 89% (225-45-17-)
Driving on a combination of roads for 12000 spirited miles
The WT M3 used to be 10-12 years ago one of the best winter tires I used (the WT M2 was better for pure snow and the WT M3 for winter slush typically found in towns and on intercity roads). Then came the 3Ds 4Ds etc and I moved to other producers and tire makes so I was happy to find the tire available for my Mercedes with a M0 homologation (this also speaks about the tire after so many years in production). The only alternative (given 109 index and 265/55/19 size requirement) I had for the Dunlops were two Pirelli's (Ice & Snow and Scorpion Winter). First I find the Pirelli's overrated and two after my experiences with other premium producers with tires made in Russia I would not buy a tire made in Romania - whatever Pirelli says. The WT M3 is generally an excellent tire for all round winter conditions. If you live in mountain areas where you get snow all time I probably would go for another tire (if available size wise). However I do go skiing several times a year and the tire never gave me any problems. I would wish that lateral holding on snow would be better but this is an issue with most of the tires I have tested privately over the last 3-5 years. As noted aquaplaning resistance, steering precision on dry and wet with speeds up to 210 km/h (index H) and I have driven them around 180-190 are excellent. Noise I don't care about overall and especially the car is well noise insulated. Even if loud I would have bought them for the other parameters mentioned. 12'000 miles and still 6-6.5mm of tread left so very decent. Breaking is reassuring on dry and wet (in my opinion being better in wet than in the dry). Curve holding excellent (except in snow when the car tends to oversteer). Fuel economy is weak but this is the price you pay for grip - also with a car with a V8 biturbo and after tuning over 500KM of output this is of least importance. Overall highly recommendable especially if you don't have too much of a choice.
tire reviewed on 2017-10-03 08:18:46
Writing about the Continental ContiSportContact 5 SUV given 91% (225-45-17-)
Driving on a combination of roads for 17000 spirited miles
Mounted on a 2.5 tonne SUV with 500+ bhp although not used for aggressive driving - more offensive. I took off the Michelin Latitudes that came originally with the car after 1000 km as they were disastrous (or at least not meeting my expectations from a UHP SUV tire). The tires I typically use on my SUV were not available in 275/50/20 nor 265/55/19 (I typically don't go for 295/45/21 etc especially on SUVs and heavy vehicles). Overall extremely pleased with it to the extend that after 1 season (ca 20'000 km I had 5mm of tread left) I bought a new set. The wear is not a surprise given the grip the car has through the tires nor the fact it is a powerful and heavy SUV. Expecting much more would be a sacrifice for other parameters or difficult to achieve. I don't agree with the user mentioning their noiseniness. On contrary I find them very quiet although this is not an issue for me. The key parameter is Aquaplanning and breaking in wet and dry and in this respect the tires scores high. The only reservation I would have is lateral aquaplaning and lateral acceleration on the wet (I tended to get occasional oversteer however when driving at the limit and with a powerful engine). Altogether I prefer oversteer to understeer. Recommendable although I would prefer the QuattroMaxx is available in this size. A pity with the quasi cartel collusion of tire producers with OEMs is that nowadays you tend to get 1 maybe 2 tires that fit your car making the choice rather of lesser evil than a studied decision - not to mention additional pain adding brand homologations.
tire reviewed on 2017-09-29 06:58:47
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