The 2022 Autobild Sportscars summer tire test has tested eleven 225/45 R18 sizes using a BMW 3 Series, but has also tested four of the SAME sets in a staggered 225/45 R18 front and 255/4 R18 rear size to compare the two different options.
First up, the main test. Sadly the test was missing Goodyear and Pirelli, and interestingly the testers found the Michelin Pilot Sport 4 not only to be the best, but also to have the sportiest handling, something we're don't see often.
Even more surprising was that the Vredestein Ultrac Vorti+ finished joint first, beating every tire in the wet handling test and ending up with enough points to match the Pilot Sport 4.
It was the test of ties, with the Falken FK510 and Toyo Proxes Sport A finishing joint third and the Bridgestone Potenza Sport and Hankook Ventus S1 Evo 3 finishing joint fifth.
Square vs Staggered Setup
The most interesting part of the test was the square vs staggered setup. Unfortunately the Tire Reviews database can't list both results, just the square, so we'll have to explain the differences below referencing the square data we have already.
The tires tested in both square and staggered were the Michelin Pilot Sport 4, the Vredestein Ultrac Vorti+, Falken FK510 and Nexen N'Fera Sport.
In the dry, the staggered setup with the wider rear tire stopped 0.1 meters worse for the Falken and 0.2m behind for Michelin and Vredestein which is certainly counter intuitive, but the Nexen was 0.3 meters better with the wider rear tire.
Dry handling made no more sense with the Michelin finishing 0.8 km/h faster with the wider rear tire, 1.3 km/h faster for the Vredestein, 1.5 km/h faster for the Nexen, but 1.3 km/h slower for the Falken.
Wet braking had the Michelin stopping the BMW 0.5 meters shorter with the wider rear, 1.3 meters shorter for Nexen but exactly the same for Vredestein and 0.5 longer for the Falken!
Finally, every set of tires was significantly slower in the wet with the wider rear tire.
What can we conclude regarding square vs staggered tires? The data shows that there's not a huge amount of difference with the extra 20 mm of rear tire width, and whether you get better or worse performance varies between what test is being tested, and the tire brand used!
There's more information in the full Auto Bild test, so we suggest you check that out if you're interested in further information.
Below is all the data from the 225/45 R18 square test.
Dry
Bridgestone, Hankook and Toyo had an impressive lead in dry braking.
Dry Braking
Spread: 1.80 M (5%)|Avg: 37.01 M
Dry braking in meters (100 - 0 km/h) (Lower is better)
Bridgestone Potenza Sport
36.00 M
Toyo Proxes Sport A
36.10 M
Hankook Ventus S1 evo 3
36.10 M
Continental Premium Contact 6
36.70 M
Falken Azenis FK510
37.00 M
Michelin Pilot Sport 4
37.10 M
Nexen N Fera Sport SU2
37.40 M
Vredestein Ultrac Vorti Plus
37.50 M
GT Radial SportActive 2
37.70 M
Tomket Sport 3 Series 3
37.70 M
Fulda SportControl 2
37.80 M
Michelin aced the dry handling test with the quickest lap time and the sportiest handling.
Dry Handling
Spread: 5.10 Km/H (4.9%)|Avg: 102.17 Km/H
Dry Handling Average Speed (Higher is better)
Michelin Pilot Sport 4
104.10 Km/H
Toyo Proxes Sport A
104.00 Km/H
Hankook Ventus S1 evo 3
103.50 Km/H
Vredestein Ultrac Vorti Plus
103.20 Km/H
Falken Azenis FK510
102.90 Km/H
Continental Premium Contact 6
102.70 Km/H
Bridgestone Potenza Sport
102.20 Km/H
Fulda SportControl 2
102.10 Km/H
Nexen N Fera Sport SU2
101.00 Km/H
GT Radial SportActive 2
99.20 Km/H
Tomket Sport 3 Series 3
99.00 Km/H
Wet
Bridgestone again led the way in wet braking.
Wet Braking
Spread: 19.90 M (43.5%)|Avg: 51.55 M
Wet braking in meters (100 - 0 km/h) (Lower is better)
Bridgestone Potenza Sport
45.70 M
Michelin Pilot Sport 4
47.60 M
Falken Azenis FK510
47.90 M
Toyo Proxes Sport A
48.80 M
Hankook Ventus S1 evo 3
49.50 M
Vredestein Ultrac Vorti Plus
49.50 M
Nexen N Fera Sport SU2
50.60 M
Fulda SportControl 2
52.40 M
Continental Premium Contact 6
52.50 M
GT Radial SportActive 2
57.00 M
Tomket Sport 3 Series 3
65.60 M
But couldn't quite beat Vredestein for the top place in wet handling.
Wet Handling
Spread: 13.70 Km/H (15.4%)|Avg: 84.85 Km/H
Wet Handling Average Speed (Higher is better)
Vredestein Ultrac Vorti Plus
88.90 Km/H
Bridgestone Potenza Sport
88.80 Km/H
Hankook Ventus S1 evo 3
87.60 Km/H
Toyo Proxes Sport A
87.50 Km/H
Michelin Pilot Sport 4
86.90 Km/H
Falken Azenis FK510
86.40 Km/H
Continental Premium Contact 6
85.80 Km/H
Fulda SportControl 2
85.10 Km/H
Nexen N Fera Sport SU2
82.90 Km/H
GT Radial SportActive 2
78.20 Km/H
Tomket Sport 3 Series 3
75.20 Km/H
GT Radial and Toyo led the way in the aquaplaning testing.
Straight Aqua
Spread: 4.80 Km/H (4.8%)|Avg: 96.96 Km/H
Float Speed in Km/H (Higher is better)
Toyo Proxes Sport A
99.40 Km/H
GT Radial SportActive 2
98.80 Km/H
Michelin Pilot Sport 4
98.20 Km/H
Falken Azenis FK510
98.00 Km/H
Vredestein Ultrac Vorti Plus
97.90 Km/H
Fulda SportControl 2
97.00 Km/H
Nexen N Fera Sport SU2
96.40 Km/H
Bridgestone Potenza Sport
95.70 Km/H
Hankook Ventus S1 evo 3
95.60 Km/H
Continental Premium Contact 6
95.00 Km/H
Tomket Sport 3 Series 3
94.60 Km/H
Curved Aquaplaning
Spread: 0.87 m/sec2 (23.6%)|Avg: 3.26 m/sec2
Remaining lateral acceleration (Higher is better)
GT Radial SportActive 2
3.69 m/sec2
Toyo Proxes Sport A
3.60 m/sec2
Fulda SportControl 2
3.60 m/sec2
Falken Azenis FK510
3.54 m/sec2
Vredestein Ultrac Vorti Plus
3.34 m/sec2
Michelin Pilot Sport 4
3.27 m/sec2
Nexen N Fera Sport SU2
3.18 m/sec2
Bridgestone Potenza Sport
3.06 m/sec2
Continental Premium Contact 6
2.91 m/sec2
Hankook Ventus S1 evo 3
2.85 m/sec2
Tomket Sport 3 Series 3
2.82 m/sec2
Environment
The budget Tomket had the lowest external noise on test.
Premium summer tires with the best dynamic driving characteristics in the dry (direct steering with good feedback), safe wet handling, short wet and dry braking, low rolling resistance.
Sporty balanced summer tire, good wet grip, good aquaplaning resistance, sporty dry handling with precise steering, short wet and dry braking distances.