ACRISS Members utilise an industry standard vehicle matrix to define car models ensuring a like to like comparison of vehicles. This easy-to-use matrix consists of four categories. Each position in the four character vehicle code represents a definable characteristic of the vehicle. This vehicle matrix makes it possible to have 400 vehicle types. Car codes are created by assigning one character from each column and combining them into a four-character car code:
| CATEGORY | TYPE | TRANSMISSION / DRIVE | FUEL/AIR COND. | |||||||
| M | Mini | B | 2-3 Door | M | Manual Unspecified Drive | R | Unspecified Fuel/Power With Air | |||
| N | Mini Elite | C | 2/4 Door | N | Manual 4WD | N | Unspecified Fuel/Power Without Air | |||
| E | Economy | D | 4-5 Door | C | Manual AWD | D | Diesel Air | |||
| H | Economy Elite | W | Wagon/Estate | A | Auto Unspecified Drive | Q | Diesel No Air | |||
| C | Compact | V | Passenger Van | B | Auto 4WD | H | Hybrid Air | |||
| D | Compact Elite | L | Limousine/Sedan | D | Auto AWD | I | Hybrid Plug in Air | |||
| I | Intermediate | S | Sport | E | Electric | |||||
| J | Intermediate Elite | T | Convertible | C | Electric | |||||
| S | Standard | F | SUV | L | LPG/Compressed Gas Air | |||||
| F | Fullsize | X | Special | A | Hydrogen Air | |||||
| G | Fullsize Elite | P | Pick up (single/extended cab) 2 door | B | Hydrogen No Air | |||||
| P | Premium | Q | Pick up (double cab) 4 door | M | Multi Fuel/Power Air | |||||
| U | Premium Elite | Z | Special Offer Car | F | Multi fuel/power No Air | |||||
| L | Luxury | E | Coupe | V | Petrol Air | |||||
| N | Roadster | |||||||||
| G | Crossover | |||||||||
| K | Commercial Van/Truck | |||||||||
| JV | 5+2 Seats | |||||||||
| SV | 7 Seats | |||||||||
| RV | Elite 7 Seats | |||||||||
| FV | 7 Seats Plus More Space | |||||||||
| UV | Elite 8 Seats | |||||||||
| LV | 9 Seats | |||||||||
