Sainz’s capture was a major coup ahead of last year, after he was left without a seat following Lewis Hamilton’s switch to Ferrari.
Clark called last year’s incident at Oakmont the “lowest point” of his career.
Gregor Townsend’s side have now won four of their six Tests this calendar year.
The tourists were skittled for 76 as Tongue took a career-best four for 28 and Archer three for 29.
James Owen’s mare bounced back from Royal Ascot disappointment.