Sorry to hear that the internet let you down, ladies. I had the best way to check my facts on this one though, I wrote it down before I got on the ride!
A picture is always your best bet: http://www.wdwinfo.com/Photos/MagicKingdomTomorrowland/pages/tom_bl3.htm
The internet is full of incorrect information; there's no review of the data for accuracy.
By the way, the space cruisers have a different designation in each park:
Tokyo Disneyland: XP-38
Hong Kong Disneyland: XP-39
Disneyland Park: XP-40
Disneyland Paris: XP-41
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