|  | Peak heat release rate (kW) | Time to peak (min) | Total energy released (MJ) | |||
---|---|---|---|---|---|---|---|
 | Distribution parameter | α | β | α | β | α | β |
Curb weight class | Mini | 5.19 | 3809 | 2.79 | 19.1 | 4.02 | 3222 |
Light | 1.66 | 5078 | 3.03 | 22.0 | 2.93 | 5009 | |
Compact | 2.40 | 4691 | 2.60 | 42.8 | 7.49 | 5591 | |
Medium | 3.18 | 7688 | 6.55 | 39.9 | 14.53 | 6648 | |
 | Combined | 2.03 | 5256 | 2.12 | 31.3 | 3.23 | 5233 |