That was the tragedy, the ''poor mans ----- '' market was disappearing year-on-year. I think I mentioned this in another thread recently, that with more people buying BMW 3-series than Mondeos, the 'Inspirational Britain' thing is well in force. No-one wants to buy a car like an Omega which does everything that the Prestige badged car does - they just buy the prestige badged car in the first place. Even if it is a base model, with half the spec of the equivalent Vauxhall/Ford etc. They're happy with the badge, and can act all snooty to the neighbours.
It's like people who buy an A-Class, or an Audi A1, etc really do think they're buying a car as expensive and exclusive as an SLR, R8 etc...
If memory serves the cost of the Omega facelift was £180mill, compared with Jag who spent £90million on the 'new' X300 in 1994, which was a heavy reskin of the XJ40. Ok, a nowadays modern 'all-new' car is about a £billion. Opel spent apparently 2 Billion Marks (about £880 million) on the Carlton.
So the Omega facelift was sort of big money, sort of cheap, depending on your perspective, and what you think you are getting for your money, so to speak.