The series had launched to 4.3 million viewers last week, the lowest opening audience in a decade and down on new host Chris Evans' own aim of 5 million.
He and co-host Matt Leblanc returned for episode two last night and it appears viewers have now made up their minds about whether or not they like the new look.
1.5 million viewers tuned out week-on-week with 2.8 million viewers watching the latest show between 8PM and 9PM.
This week it did face some stiffer competition with Soccer Aid 2016 on ITV bringing in an average audience of 4 million (including ITV+1), peaking with 5.9 million viewers in the match itself.
However dipping below 3 million viewers two episodes in doesn't bode too well for the future of the format without Jeremy Clarkson, Richard Hammond and James May.
Elsewhere last night a dramatic episode of Love Island interested 600,000 viewers (excluding +1) as the ITV2 series saw one contestant kicked out of the villa.
Earlier in the day, 2.2 million watched Andy Murray in the French Open final on ITV with a peak audience of 3.4 million.