My family had two volvos that behaved like this. One was an '81 Volvo 240 DL manual, and the other was a '92 Volvo 740 automatic. Both of them could get up to highway speed noticeably faster if you turned off the A/C. (My dad used to say they’d “do 0 to 60 on a leisurely afternoon.”) There’s some chance that A/C was aftermarket on the '81, so maybe that’s a factor? But the '92 did it too, and that was definitely stock.
My family had two volvos that behaved like this. One was an '81 Volvo 240 DL manual, and the other was a '92 Volvo 740 automatic. Both of them could get up to highway speed noticeably faster if you turned off the A/C. (My dad used to say they’d “do 0 to 60 on a leisurely afternoon.”) There’s some chance that A/C was aftermarket on the '81, so maybe that’s a factor? But the '92 did it too, and that was definitely stock.
I can believe it, i was talking about cars made this century. The care from the 1900’s were something else.