Penske's two-time Supercars champion Scott McLaughlin will take part in IndyCar's oval rookie test at Texas on Friday.
McLaughlin drove on both days of IndyCar's 'spring training' test at Austin on Tuesday and Wednesday in preparation for his debut in the Indianapolis road course race, and will be back in Penske's #2 car this week on the 1.5-mile oval.
He will join IndyCar's full-time 2020 rookies Oliver Askew (Arrow McLaren SP), Dale Coyne recruit Alex Palou and Rinus VeeKay (Ed Carpenter Racing).
VeeKay's team boss Ed Carpenter, who will contest oval races this year, is also due to take part.
Ahead of McLaughlin's oval debut, Penske's managing director Ron Ruzewski stressed not too much should be read into the Supercars champ's participation in the test.
"There's no plans in place; Scott can't race at Texas," Ruzewski told Autosport.
"He has schedule conflicts. But since we're here in Texas and he's over here with us, we're going to do some laps with him.
"I would expect him to be more in his element [at Austin] than at Texas Motor Speedway, but yes, he did a very good job."
McLaughlin's Supercars commitments at Perth, Winton, Townsville and Darwin would preclude him from Indy 500 qualifying and the rounds at Texas, Richmond and Iowa.
That leaves Gateway as the only oval IndyCar race that McLaughlin could feasibly fit around his Supercars events.
Ruzewski said Penske is yet to schedule another test for McLaughlin, whose next appearance in an IndyCar on a road course could be in practice for May's Indianapolis race.
Power tops test as McLaughlin stars
McLaughlin finished an impressive third across the two days of the Austin test, which was led by fellow Penske driver and 2014 IndyCar champion Will Power.
The two days of track time were effectively compressed into a six-hour session due to foul weather on Tuesday, but Power still set a best time of 1m46.760s, which was 0.6 seconds shy of the pole position time he recorded for last year's inaugural race.
That effort was particularly impressive given drivers were forced to obey track limits through the United States Grand Prix venue's penultimate corner.
Andretti Autosport's Alexander Rossi was second fastest, 0.2396s behind Power, with McLaughlin - who marginally outpaced his team-mate and reigning champion Josef Newgaren - 0.2631s further back.
McLaughlin made only one noticeable error, a spin at Turn 1, and was able to exploit the extra grip on offer when running a new set of tyres.
Andretti Harding Steinbrenner Racing's Colton Herta - who won last year's Austin race - was fifth, but had to sit out five minutes of the final hour after spinning into the Turn 19 gravel trap, causing a late red flag.
Between Herta and former Indy Lights team-mate Patricio O'Ward spinning his Arrow McLaren SP-Chevrolet at Turn 18, the last 45 minutes of the day were messy.
That meant not every driver could show their full potential due to red flags at inconvenient times, as well as a crowded track as the majority of cars poured onto the 3.4-mile circuit for a last-gasp chance to improve.
Simon Pagenaud ensured all four Penskes finished in the top six, while two more impressive rookie performances came from O'Ward's team-mate Oliver Askew, who was seventh, and Alex Palou in the Dale Coyne Racing with Team Goh entry.
The 2019 Super Formula frontrunner finished the day ninth, and was within one second of Power's best lap.
Austin test times
|1||Will Power||Team Penske||Dallara/Chevrolet||1m46.7603s||57|
|2||Alexander Rossi||Andretti Autosport||Dallara/Honda||0.2396s||49|
|3||Scott McLaughlin||Team Penske||Dallara/Chevrolet||0.5027s||62|
|4||Josef Newgarden||Team Penske||Dallara/Chevrolet||0.5147s||53|
|5||Colton Herta||Andretti Autosport||Dallara/Honda||0.6069s||43|
|6||Simon Pagenaud||Team Penske||Dallara/Chevrolet||0.7965s||66|
|7||Oliver Askew||McLaren SP||Dallara/Chevrolet||0.8008s||76|
|8||Scott Dixon||Chip Ganassi Racing||Dallara/Honda||0.9318s||52|
|9||Alex Palou||Dale Coyne Racing||Dallara/Honda||0.9467s||60|
|10||Patricio O'Ward||McLaren SP||Dallara/Chevrolet||0.9548s||67|
|11||Felix Rosenqvist||Chip Ganassi Racing||Dallara/Honda||1.0193s||59|
|12||Marco Andretti||Andretti Autosport||Dallara/Honda||1.0782s||57|
|13||Jack Harvey||Meyer Shank Racing||Dallara/Honda||1.1299s||61|
|14||Ryan Hunter-Reay||Andretti Autosport||Dallara/Honda||1.1311s||51|
|16||Graham Rahal||Rahal Letterman Lanigan||Dallara/Honda||1.2267s||51|
|17||Zach Veach||Andretti Autosport||Dallara/Honda||1.2451s||59|
|18||Rinus Van Kalmthout||Ed Carpenter Racing||Dallara/Chevrolet||1.4595s||82|
|19||Marcus Ericsson||Chip Ganassi Racing||Dallara/Honda||1.5462s||65|
|20||Santino Ferrucci||Dale Coyne Racing||Dallara/Honda||1.6037s||52|
|21||Sergio Sette Camara||Carlin||Dallara/Chevrolet||1.7104s||28|
|22||Takuma Sato||Rahal Letterman Lanigan||Dallara/Honda||1.9293s||40|
|23||Charlie Kimball||AJ Foyt Enterprises||Dallara/Chevrolet||1.9322s||52|
|24||Sebastien Bourdais||AJ Foyt Enterprises||Dallara/Chevrolet||2.0758s||35|
|25||Conor Daly||Ed Carpenter Racing||Dallara/Chevrolet||2.3178s||62|
|27||Dalton Kellett||AJ Foyt Enterprises||Dallara/Chevrolet||4.2340s||20|