TTI acquired Vax in 1999, and Hoover in 2007. We've only had 'cross-over' products since 2007, as far as I know. Before that, when Maytag were in charge, we had things like the new Constellation, badged as the Mayag Satellite (since Hoover UK own the rights to the Constellation name with regards to vacuum cleaners), the Maytag Windtunnel in the early 2000's, and as I mentioned on another thread, we were supposed to have the Hoover Z as a Maytag, but that plan fell through.
Since TTI took over, we've shared the Mach upright range, the Floormate hard floor washer, the Dual-V carpet washers, etc. We've also now got the Hoover Anniversary Windtunnel Canister as the Vax Maxima, although it's been through what's known as a 're-skin' process, so it looks very slightly different. It also lacks the Windtunnel powerhead, sadly.
Hoover US' Platinum Collection Cyclonic Canister was actually designed and developed in the UK.
Under TTI, Vax have become the largest-selling brand in unit-sales in the UK. This is followed by Dyson (who I believe are the winner in terms of sales value, since their machines are more expensive), then Hoover, Electrolux, and one other brand (I've forgotten which!) continually battle for 3rd place.
Hoover's European operations are owned by Candy - they were sold off after the DISASTER which was the 'free flights scandal' in the UK, which lost the company £46,000 000, and ruined Hoover's reputation over here forever (a process they neatly finished with the equal disaster which was 'The One' range of cleaners!)
It's a weird state-of-play: American Hoover products are rebadged as Vax, and fight aggressively for a market-share against UK Hoover-Candy models!
http://www.ttigroup.com/en/our_brands/by_division/floor_care
