Red Bull Racing Australia duo Jamie Whincup and Craig Lowndes showed the way in the final practice session before qualifying at the Sandown 500.
While co-drivers all completed at least one lap in the remaining 27 cars, Whincup had the #1 Holden to himself throughout the 40 minutes as he continued to chase set-up with his new chassis.
The points leader sat at the top of the order for much of the session, becoming the first to lap in the 1:08s bracket with 12 minutes remaining.
Lowndes and the Holden Racing Team's Garth Tander subsequently took turns at the top during the closing stages, before a last effort completed after the chequered flag put Whincup ahead by just 0.003s.
Tim Slade continued Erebus Motorsport's strong form by splitting Lowndes and Tander with a similarly late lap.
Will Davison, Lee Holdsworth and Mark Winterbottom completed the top seven; all of whom went faster than Lowndes' new practice record from Friday.
Practice 4 was interrupted by a single red flag period, called after just eight minutes to retrieve the #17 Dick Johnson Racing Falcon that Ashley Walsh had buried in the Turn 9 gravel.
The V8 Supercars will return to the circuit for a 20 minute qualifying session at 1225 local time.
See below for the full Practice 4 result
1 | Jamie Whincup | Holden Commodore VF | 01:08.67 | |
2 | C.Lowndes/W.Luff | Holden Commodore VF | 01:08.67 | 00:00.00 |
3 | T.Slade/A.Thompson | Mercedes E63 AMG | 01:08.70 | 00:00.04 |
4 | G.Tander/N.Percat | Holden Commodore VF | 01:08.72 | 00:00.06 |
5 | W.Davison/S.Owen | Ford Falcon FG | 01:08.73 | 00:00.07 |
6 | L.Holdsworth/C.Baird | Mercedes E63 AMG | 01:08.79 | 00:00.13 |
7 | M.Winterbottom/ | Ford Falcon FG | 01:08.92 | 00:00.26 |
8 | A.Premat/G.Ritter | Holden Commodore VF | 01:08.98 | 00:00.31 |
9 | S.Van Gisbergen/ | Holden Commodore VF | 01:09.00 | 00:00.33 |
10 | S.McLaughlin/J.Perkins | Holden Commodore VF | 01:09.00 | 00:00.34 |
11 | J.Bright/A.Jones | Holden Commodore VF | 01:09.01 | 00:00.35 |
12 | C.Mostert/D.Wood | Ford Falcon FG | 01:09.02 | 00:00.36 |
13 | D.Reynolds/D.Canto | Ford Falcon FG | 01:09.19 | 00:00.52 |
14 | J.Courtney/G.Murphy | Holden Commodore VF | 01:09.19 | 00:00.52 |
15 | R.Ingall/R.Briscoe | Holden Commodore VF | 01:09.20 | 00:00.53 |
16 | T.Kelly/D.Russell | Nissan Altima | 01:09.21 | 00:00.55 |
17 | T.D'Alberto/J.Reid | Holden Commodore VF | 01:09.33 | 00:00.67 |
18 | J.Moffat/T.Douglas | Nissan Altima | 01:09.37 | 00:00.71 |
19 | S.Pye/P.Morris | Holden Commodore VF | 01:09.40 | 00:00.74 |
20 | M.Engel/S.Johnson | Mercedes E63 AMG | 01:09.41 | 00:00.74 |
21 | D.Wall/C.Pither | Holden Commodore VF | 01:09.47 | 00:00.81 |
22 | M.Caruso/D.Gaunt | Nissan Altima | 01:09.51 | 00:00.84 |
23 | R.Kelly/K.Reindler | Nissan Altima | 01:09.52 | 00:00.86 |
24 | T.Blanchard/A.Walsh | Ford Falcon FG | 01:09.56 | 00:00.89 |
25 | A.Davison/J.McIntyre | Ford Falcon FG | 01:09.62 | 00:00.95 |
26 | F.Coulthard/L.Youlden | Holden Commodore VF | 01:09.71 | 00:01.05 |
27 | J.Webb/M.Lieb | Holden Commodore VF | 01:09.74 | 00:01.07 |
28 | D.Fiore/M.Halliday | Holden Commodore VF | 01:09.90 | 00:01.23 |