BOP within a class
Within a single class some cars are faster than others, and this is the mix BOP can actually fix. Here is every class with its cars ranked by pace measured in our races, and the adjustment that brings each one down to the slowest.
Data measured on 2026-10-12
Here BOP does reach
That is the difference from mixing different classes. Between classes the average gap is 14 % and BOP reaches about 2 %: it does not add up. Between cars of the same class the average gap is 1.54 % and eight out of ten pairs fit within what BOP can move.
| Between different classes | Within one class | |
|---|---|---|
| Average lap gap | 14.1 % | 1.85 % |
| Pairs BOP can reach | 22 % | 84 % |
| What the table tells you | mostly that it cannot be done | the values that equalise them |
The 10 classes with enough data
A class appears here when at least three of its cars have raced enough to be compared. The verdict looks at the spread between the fastest and the slowest.
GT4
Too spread out to equalise as a wholeslowing to the limit is not enough for the front runners · the 5 in the middle do equalise among themselves
| Car | Difference | Adjustment to equalise | Backing |
|---|---|---|---|
 | — | power 1.000 · drag 1.100 | 86 comparisons |
 Chevrolet Camaro GT4.R 465 hp · 1495 kg · drag 1.18× | +4.57 % | power 0.900 · ballast 75 kg · drag 0.900stays 2.70 % ahead | 50 comparisons |
 | +4.28 % | power 0.900 · ballast 58 kg · drag 1.055stays 2.41 % ahead | 97 comparisons |
 | +3.42 % | power 0.900 · ballast 78 kg · drag 1.022stays 1.55 % ahead | 38 comparisons |
 | +3.02 % | power 0.900 · ballast 60 kg · drag 0.900stays 1.15 % ahead | 92 comparisons |
 | +2.48 % | power 0.900 · ballast 74 kgstays 0.61 % ahead | 60 comparisons |
 | +2.48 % | power 0.900 · ballast 76 kg · drag 0.927stays 0.61 % ahead | 58 comparisons |
 Porsche Cayman GT4 Clubsport MR 404 hp · 1390 kg · drag 0.92× | +1.65 % | power 0.918 · ballast 70 kg · drag 1.020 | 92 comparisons |
 McLaren 570S GT4 455 hp · 1530 kg · drag 1.19× | +1.45 % | power 0.934 · ballast 76 kg · drag 0.900 | 93 comparisons |
GT1 05
Too spread out to equalise as a wholeslowing to the limit is not enough for the front runners · the 4 in the middle do equalise among themselves
| Car | Difference | Adjustment to equalise | Backing |
|---|---|---|---|
| — | power 1.000 · drag 1.100 | 26 comparisons | |
 | +5.20 % | power 0.900 · ballast 59 kgstays 3.33 % ahead | 15 comparisons |
| +4.60 % | power 0.900 · ballast 61 kg · drag 0.924stays 2.73 % ahead | 9 comparisons |
 | +4.17 % | power 0.900 · ballast 67 kgstays 2.30 % ahead | 22 comparisons |
| +3.73 % | power 0.900 · ballast 63 kgstays 1.86 % ahead | 17 comparisons |
Saleen S7-R GT1 600 hp · 1280 kg · drag 1.03× | +2.82 % | power 0.900 · ballast 64 kgstays 0.95 % ahead | 7 comparisons |
 Dodge Viper GTS-R 638 hp · 1230 kg · drag 1.11× | +1.99 % | power 0.900 · ballast 62 kg · drag 0.990stays 0.12 % ahead | 9 comparisons |
Lister Storm GTM 591 hp · 1185 kg · drag 1.02× | +0.81 % | power 0.985 · ballast 59 kg · drag 1.094 | 5 comparisons |
GT3 Gen2
Equalised with power and ballastballast is needed too, but it reaches
| Car | Difference | Adjustment to equalise | Backing |
|---|---|---|---|
| — | power 1.000 · drag 1.036 | 100 comparisons |
Porsche 992 GT3 R 544 hp · 1390 kg · drag 0.98× | +1.62 % | power 0.920 · ballast 70 kg · drag 0.972 | 129 comparisons |
McLaren 720S GT3 Evo 541 hp · 1385 kg · drag 1.03× | +0.84 % | power 0.983 · ballast 69 kg · drag 0.988 | 128 comparisons |
Chevrolet Corvette Z06 GT3.R 561 hp · 1425 kg · drag 1.04× | +0.72 % | power 0.992 · ballast 71 kg · drag 1.028 | 98 comparisons |
Audi R8 LMS GT3 evo II 565 hp · 1390 kg · drag 1.09× | +0.57 % | power 1.000 · ballast 64 kg · drag 0.995 | 101 comparisons |
BMW M4 GT3 549 hp · 1385 kg · drag 1.04× | +0.45 % | power 1.000 · ballast 50 kg · drag 1.005 | 130 comparisons |
Mercedes-AMG GT3 Evo 541 hp · 1440 kg · drag 1.00× | +0.22 % | power 1.000 · ballast 25 kg · drag 1.036 | 124 comparisons |
Aston Martin Vantage GT3 Evo 548 hp · 1370 kg · drag 1.18× | +0.14 % | power 1.000 · ballast 15 kg · drag 0.900 | 126 comparisons |
GT3
Too spread out to equalise as a wholeslowing to the limit is not enough for the front runners · the 5 in the middle do equalise among themselves
| Car | Difference | Adjustment to equalise | Backing |
|---|---|---|---|
| — | power 1.000 · drag 1.050 | 89 comparisons |
 | +2.41 % | power 0.900 · ballast 69 kg · drag 1.026stays 0.54 % ahead | 127 comparisons |
| +2.06 % | power 0.900 · ballast 70 kg · drag 1.047stays 0.19 % ahead | 130 comparisons |
| +2.02 % | power 0.900 · ballast 68 kg · drag 0.925stays 0.15 % ahead | 121 comparisons |
| +1.97 % | power 0.900 · ballast 66 kg · drag 0.975stays 0.10 % ahead | 129 comparisons |
| +1.30 % | power 0.946 · ballast 69 kg · drag 0.922 | 128 comparisons |
LMDh
Equalised with power and ballastballast is needed too, but it reaches
| Car | Difference | Adjustment to equalise | Backing |
|---|---|---|---|
| — | no adjustment | 6 comparisons |
 Cadillac V-Series.R 670 hp · 1130 kg · drag 0.93× | +1.28 % | power 0.947 · ballast 56 kg · drag 0.947 | 4 comparisons |
Porsche 963 670 hp · 1130 kg · drag 0.93× | +0.88 % | power 0.979 · ballast 56 kg · drag 0.979 | 8 comparisons |
Alpine A424 670 hp · 1130 kg · drag 0.93× | +0.52 % | power 1.000 · ballast 47 kg | 4 comparisons |
Lamborghini SC63 670 hp · 1130 kg · drag 0.93× | +0.01 % | no adjustment | 6 comparisons |
| -1.74 % | no adjustment | 8 comparisons |
P1Gen2
Too spread out to equalise as a wholeslowing to the limit is not enough for the front runners · the 4 in the middle do equalise among themselves
| Car | Difference | Adjustment to equalise | Backing |
|---|---|---|---|
| — | no adjustment | 1 comparisons | |
Ginetta G58 Gen2 564 hp · 1020 kg · drag 1.25× | +2.22 % | power 0.900 · ballast 51 kg · drag 0.900stays 0.35 % ahead | 1 comparisons |
| +1.68 % | power 0.915 · ballast 52 kg · drag 1.100 | 2 comparisons | |
| +1.38 % | power 0.939 · ballast 55 kg · drag 0.929 | 2 comparisons | |
| +0.27 % | power 1.000 · ballast 24 kg · drag 1.100 | 2 comparisons |
GT1
Too spread out to equalise as a wholeslowing to the limit is not enough for the front runners · the 3 in the middle do equalise among themselves
| Car | Difference | Adjustment to equalise | Backing |
|---|---|---|---|
| — | no adjustment | 5 comparisons |
| +2.03 % | power 0.900 · ballast 53 kg · drag 0.947stays 0.16 % ahead | 5 comparisons |
| +1.14 % | power 0.959 · ballast 52 kg · drag 1.100 | 3 comparisons | |
| +0.62 % | power 1.000 · ballast 52 kg | 5 comparisons |
F-V10 Gen3
Too spread out to equalise as a wholeslowing to the limit is not enough for the front runners · the 2 in the middle do equalise among themselves
| Car | Difference | Adjustment to equalise | Backing |
|---|---|---|---|
| — | power 1.000 · drag 1.036 | 27 comparisons | |
| +2.54 % | power 0.900 · ballast 30 kg · drag 0.933stays 0.67 % ahead | 26 comparisons | |
| +1.06 % | power 0.965 · ballast 30 kg | 27 comparisons |
F-V8 Gen1
Equalised with power and ballastballast is needed too, but it reaches
| Car | Difference | Adjustment to equalise | Backing |
|---|---|---|---|
| — | power 1.000 · drag 1.056 | 25 comparisons | |
Formula V8 Gen1 Model2 716 hp · 605 kg · drag 0.91× | +1.44 % | power 0.934 · ballast 30 kg · drag 0.986 | 25 comparisons |
Formula V8 Gen1 Model1 (M) 726 hp · 605 kg · drag 0.92× | +1.28 % | power 0.947 · ballast 30 kg | 22 comparisons |
Group A
Too spread out to equalise as a wholeslowing to the limit is not enough for the front runners · the 2 in the middle do equalise among themselves
| Car | Difference | Adjustment to equalise | Backing |
|---|---|---|---|
| — | no adjustment | 12 comparisons |
Audi V8 quattro DTM 445 hp · 1330 kg · drag 1.01× | +3.28 % | power 0.900 · ballast 66 kg · drag 1.100stays 1.41 % ahead | 13 comparisons |
| +0.42 % | power 1.000 · ballast 35 kg | 11 comparisons |
the slowest: everyone else is brought down to it · so far behind that slowing everyone else for it makes no sense; left out of the adjustment · BOP does not reach: even slowed to the limit it is still faster
How the cars are ranked
Not by averaging their lap times: each car has raced on different tracks, and one that only ran at Monza would look devastating. The order comes from comparing cars that shared a track, pair by pair, and averaging afterwards. Each row says how many comparisons back it.
The reference is the slowest car
Everyone else is slowed down to it, which is the Gonky policy: BOP slows down, it does not speed up. That way no car needs more power than stock.
Unless that car is adrift
If the slowest is far behind the next one, it is left out. Slowing a whole class to match a car nobody picks does not fix the racing, it ruins it.
Ballast comes from each car’s own weight
Not from the class average: the spec sheet has the real weight of every car, so 3 % is a different number of kilos on each row.
And where BOP falls short, it says so
Slowing to the limit moves at most 1.87 % of lap time. A car needing more is left halfway, and the row flags it rather than pretending it is solved.
What this is NOT
It is not lab data
These are real races: free setups, drivers of different standards, traffic and drafting are all inside the number. Good for deciding and for starting somewhere sensible, not for fine-tuning a tenth.
It does not cover the whole catalogue
Only classes where at least three cars have raced enough. If yours is missing, race it: once there are valid laps from three drivers it enters the next update.
It does account for the straights, and it was needed
Measured on 2026-08-29: cutting the fast car's power also cuts its top speed, and in 5 of the 10 classes the straight-line spread came out WORSE than before touching anything — in LMDh and F-V8 Gen1, where every car has the same top speed, the adjustment created 6 and 12 km/h out of nothing. That is why the recipe carries drag: it levels top speed and leaves the spread at 0-1 km/h in eight of the ten classes. Top speed is the figure DECLARED by Reiza in the game files, not a track measurement, and drag's cost in lap time is the only thing on this table that is not measured.
And it expires with the physics
If Reiza touches a class’s tyres or aero, these numbers stop being valid. The measurement date is at the top.
Frequently asked questions
Why slow the fast car instead of speeding up the slow one?
Because slowing down has two levers (power and ballast) and speeding up only one, so it reaches further. And because a slow car is usually slow through lack of grip: more power makes it worse rather than closer. Besides, “I gave you ballast” is easier to explain to a driver than “I gave your rival more power”.
Do these values hold on any track?
They are the average across every track where they were measured, and the gap between two cars moves from one layout to another. Use them as a starting point and adjust where you are going to race if you want to fine-tune.
My favourite car comes out slowest. Is it bad?
It means that in our races it has set slightly worse times, with the drivers and setups that took it out. It is not a verdict on the car: it is what happened on track. And if it is its class reference, it is precisely the one carrying no ballast at all.
What if a class comes out “too spread out”?
That it cannot be equalised as a whole with what the server allows. The table tells you how many cars in the middle do equalise among themselves: that is the grid that works. The ones at the extremes are better off in another race.
How often is it updated?
With every batch of new races that changes something, and always with the measurement date on display.