It's a little confusing... you can get a Hot Rod boot in both 100mm (Speedmachine last) or 101mm (Sportmachine last). They make a 98mm freeride boot but call it Jah Love rather than Hot Rod. Probably the most confusing company to research boots from. Awesome fit and quality though, just confusing.
The Ace of Spades isn't wider than the Sportmachine. It will be a nice complement to the 98mm Full Tilts and 105mm SPKs. Plus, Atomic has a new boot coming out next year that is 102mm and will be awesome.