The 2018 LMP3 Cup Championship was the second season for the British LMP3 Cup. The calendar was announced on 10 November 2017,[1] with the same venues as the previous year, but in a different order. The series finale was held at Silverstone, one month later than in 2017.
Michelin supplied the tyres, a change from Pirelli in 2017,[2] and French manufacturer Norma campaigned an M30 chassis, the first non-Ligier JS P3 in the series.[3]
| Team | Chassis | Engine | No | Driver(s) | Rounds | Class | |
|---|---|---|---|---|---|---|---|
 Ecurie Ecosse / Nielsen Racing | Nissan VK50VE | 1 | Colin Noble [4] | 1–6 | Rowspan=2 | LMP3 | |
| Tony Wells | 1–6 | ||||||
| 7 |  Christian Olsen[5] | 1, 6 | LMP3 | ||||
| Nick Adcock | 6 | ||||||
| Red River Sport | Nissan VK50VE | 2 | Johnny Mowlem | 1–4, 6 | LMP3 | ||
| Bonamy Grimes | 1–4, 6 | ||||||
| Mectech Motorsport | Norma M30 | Nissan VK50VE | 21 | Bradley Smith | 1–6 | LMP3 | |
| Duncan Williams | 1–6 | ||||||
| 360 Racing | Nissan VK50VE | 23 | Jason Rishover | 1–2 | LMP3 | ||
| Jamie Spence | 1–2 | ||||||
 United Autosports | Ford 3.7L V6 Supercharged | 32 | Charlie Hollings | 1 | PT4 | ||
| Andrew Bentley | 1 | ||||||
| Speedworks Motorsport | Nissan VK50VE | 96 | Jack Butel | 1–6 | LMP3 | ||
| Dominic Paul | 1–6 | ||||||
| Round | Circuit | Date | Pole Position | Winners | |
|---|---|---|---|---|---|
| 1 | R1 | Donington Park (National Circuit, Leicestershire) | 21–22 April | No. 1 Ecurie Ecosse/Nielsen Racing Colin Noble Tony Wells | No. 7 Ecurie Ecosse/Nielsen Racing Christian Olsen |
| R2 | No. 21 Mectech Motorsport Bradley Smith Duncan Williams | No. 21 Mectech Motorsport Bradley Smith Duncan Williams | |||
| 2 | R4 | Brands Hatch (Grand Prix Circuit, Kent) | 19–20 May | No. 21 Mectech Motorsport Bradley Smith Duncan Williams | No. 1 Ecurie Ecosse/Nielsen Racing Colin Noble Tony Wells |
| R5 | No. 21 Mectech Motorsport Bradley Smith Duncan Williams | No. 1 Ecurie Ecosse/Nielsen Racing Colin Noble Tony Wells | |||
| 3 | R5 |  Spa Francochamps(Stavelot, Belgium) | 2 June | No. 1 Ecurie Ecosse/Nielsen Racing Colin Noble Tony Wells | No. 1 Ecurie Ecosse/Nielsen Racing Colin Noble Tony Wells |
| R6 | 3 June | No. 1 Ecurie Ecosse/Nielsen Racing Colin Noble Tony Wells | No. 21 Mectech Motorsport Bradley Smith Duncan Williams | ||
| 4 | R7 | Snetterton Circuit (300 Circuit, Norfolk) | 30 June | No. 1 Ecurie Ecosse/Nielsen Racing Colin Noble Tony Wells | No. 1 Ecurie Ecosse/Nielsen Racing Colin Noble Tony Wells |
| R8 | 1 July | No. 96 Speedworks Motorsport Jack Butel Dominic Paul | No. 1 Ecurie Ecosse/Nielsen Racing Colin Noble Tony Wells | ||
| 5 | R9 | Donington Park (Grand Prix Circuit, Leicestershire) | 8 September | No. 21 Mectech Motorsport Bradley Smith Duncan Williams | No. 21 Mectech Motorsport Bradley Smith Duncan Williams |
| R10 | 9 September | No. 1 Ecurie Ecosse/Nielsen Racing Colin Noble Tony Wells | No. 1 Ecurie Ecosse/Nielsen Racing Colin Noble Tony Wells | ||
| 6 | R11 | Silverstone Circuit (Grand Prix Circuit, Northamptonshire) | 13 October | No. 7 Ecurie Ecosse/Nielsen Racing Christian Olsen Nick Adcock | No. 21 Mectech Motorsport Bradley Smith Duncan Williams |
| R12 | 14 October | No. 7 Ecurie Ecosse/Nielsen Racing Christian Olsen Nick Adcock | No. 21 Mectech Motorsport Bradley Smith Duncan Williams | ||