The entry list for the fourth round of the 2023 FIA RX2e Championship at Mettet (Circuit Jules Tacheny) in Belgium on August 5-6 looks as follows:
| No. | Driver | Car | Team |
|---|---|---|---|
| 3 |  Johan Kristoffersson | RX2e | Kristoffersson Motorsport |
| 5 |  Pablo Suárez | RX2e | Zeroid Motorsport |
| 13 |  | |
|
| 14 | Nils Andersson | RX2e | Kristoffersson Motorsport |
| 19 | Mikaela Åhlin-Kottulinsky | RX2e | Kristoffersson Motorsport |
| 21 | Timmy Hansen | RX2e | Hansen World RX Team |
| 27 |  Marko Muru | RX2e |  Set Promotion |
| 28 | Filip Thorén | RX2e | Zeroid Motorsport |
| 55 |  Molly Taylor | RX2e | #YellowSquad |
| 71 | Kevin Hansen | RX2e | Hansen World RX Team |
| 82 | Isak Sjökvist | RX2e | #YellowSquad |
| 88 |  Ole Henry Steinsholt | RX2e | Ole Henry Steinsholt |
| 96 | Ole Christian Veiby | RX2e | Kristoffersson Motorsport |