Daniel Rowbottom headed a NAPA Racing UK 1-2-3 in the opening British Touring Car Championship practice session at Oulton Park, just under a tenth of a second ahead of Ash Sutton.
The Alliance Racing-run cars spent much of the session at the top of the times, after Rowbottom went quickest around 17 minutes in with a lap of 1 minute 26.008 seconds.
Seconds later, team-mate Dan Cammish deposed him, but Rowbottom returned to the top on his next lap, and went quicker still, before Sutton went quickest at the halfway point.
Sutton then stayed on top for 15 minutes, before Rowbottom went quicker still on his final two flying laps, ending with a lap of 1:24.485.
Sutton was second, 0.095 seconds adrift, whilst Cammish completed the Ford 1-2-3, a further two tenths of a second back.
Tom Chilton was the best of the Team Vertu drivers in fourth, generally lapping quicker than his Hyundai team-mates throughout the 40-minute session, ahead of team-mate Tom Ingram in fifth, who was just under half a second off the pace.
Adam Morgan completed the Team Vertu trio in sixth, ahead of One Motorsport’s Josh Cook in seventh.
The top ten was completed by Toyota trio Gordon Shedden, Árón Taylor-Smith and James Dorlin, who demonstrated a good turn of pace for the locally-based Speedworks Motorsport squad.
The WSR-run BMWs struggled for pace – Charles Rainford was the fastest of the 3 Series drivers in 15th, directly ahead of reigning champion Jake Hill in only 16th, 1.398 seconds off the pace.
Rookie Finn Leslie, replacing Ronan Pearson this weekend at Toyota, was 22nd on his first-ever BTCC session, just under two seconds adrift.
Second practice is scheduled to begin at 12:05 BST.
Session results
POS | NO | NAT | DRIVER | ENTRANT | CAR | LAPS | TIME | GAP |
1 | 32 | Daniel ROWBOTTOM | NAPA Racing UK | Ford Focus ST | 20 | 1:24.485 | – | |
2 | 116 | Ashley SUTTON | NAPA Racing UK | Ford Focus ST | 17 | 1:24.580 | 0.095 | |
3 | 27 | Dan CAMMISH | NAPA Racing UK | Ford Focus ST | 18 | 1:24.794 | 0.309 | |
4 | 3 | Tom CHILTON | Team Vertu | Hyundai i30 N Fastback | 16 | 1:24.932 | 0.447 | |
5 | 80 | Tom INGRAM | Team Vertu | Hyundai i30 N Fastback | 12 | 1:24.978 | 0.493 | |
6 | 33 | Adam MORGAN | Team Vertu | Hyundai i30 N Fastback | 16 | 1:25.044 | 0.559 | |
7 | 66 | Josh COOK | One Motorsport | Honda Civic Type-R | 16 | 1:25.182 | 0.697 | |
8 | 52 | Gordon SHEDDEN | TOYOTA GAZOO Racing UK with IAA | Toyota Corolla GR Sport | 15 | 1:25.223 | 0.738 | |
9 | 40 | Árón TAYLOR-SMITH | TOYOTA GAZOO Racing UK with IAA | Toyota Corolla GR Sport | 19 | 1:25.235 | 0.750 | |
10 | 132 | James DORLIN | TOYOTA GAZOO Racing UK with IAA | Toyota Corolla GR Sport | 15 | 1:25.336 | 0.851 | |
11 | 22 | Chris SMILEY | Restart Racing | Hyundai i30 N Fastback | 17 | 1:25.345 | 0.860 | |
12 | 77 | Sam OSBORNE | NAPA Racing UK | Ford Focus ST | 18 | 1:25.375 | 0.890 | |
13 | 88 | Mikey DOBLE | Motor Parts Direct with Power Maxed Racing | Vauxhall Astra | 16 | 1:25.694 | 1.209 | |
14 | 17 | Dexter PATTERSON | ROKiT Racing with Un-Limited Motorsport | CUPRA Leon | 18 | 1:25.741 | 1.256 | |
15 | 99 | Charles RAINFORD | LKQ Euro Car Parts Racing with WSR | BMW 330i M Sport | 16 | 1:25.775 | 1.290 | |
16 | 1 | Jake HILL | Laser Tools Racing with MB Motorsport | BMW 330i M Sport | 16 | 1:25.883 | 1.398 | |
17 | 123 | Daniel LLOYD | Restart Racing | Hyundai i30 N Fastback | 15 | 1:25.960 | 1.475 | |
18 | 16 | Aiden MOFFAT | LKQ Euro Car Parts Racing with WSR | BMW 330i M Sport | 18 | 1:25.991 | 1.506 | |
19 | 2 | Daryl DELEON | WSR | BMW 330i M Sport | 17 | 1:26.006 | 1.521 | |
20 | 18 | Senna PROCTOR | Team Vertu | Hyundai i30 N Fastback | 14 | 1:26.010 | 1.525 | |
21 | 28 | Nicolas HAMILTON | Powder Monkey Brewing Co with Esidock | CUPRA Leon | 18 | 1:26.321 | 1.836 | |
22 | 26 | Finn LESLIE | TOYOTA GAZOO Racing UK with IAA | Toyota Corolla GR Sport | 14 | 1:26.475 | 1.990 | |
23 | 93 | Max HALL | ROKiT Racing with Un-Limited Motorsport | CUPRA Leon | 9 | 1:26.958 | 2.473 | |
24 | 50 | Nick HALSTEAD | Motor Parts Direct with Power Maxed Racing | Vauxhall Astra | 15 | 1:29.154 | 4.669 | |
25 | 12 | Stephen JELLEY | One Motorsport | Honda Civic Type-R | 4 | No time | N/A |