Perhaps. But Ace of Spades seems to be the album that truly set everything thrash and speed off, from the unremitting velocity, to Lemmy's bass tone, to his growly rasp of a singing voice, to the fact that literally every major thrash band lists them as a primary influence whether it be Metallica, Testament, or Overkill, the band that went as far as having stolen their name from one of Motörhead's albums, to the fact that they heavily influenced all the musical styles that influenced thrash such as the NWOBHM and hardcore punk, to Philthy Taylor's drumming, right down to their "Fuck off and die if you can't handle it" attitude.