Electronic speedometer sensor failed at 100k miles. This seemingly small problem cost £300 to repair, luckily covered by warranty taken out and about to expire!
Rear suspension failing after 10 years - got away with one side replacement this year, other will fail MOT next year - very expensive if done by Honda (quoted £800 each!).
Rust sadly showing around windscreen driver side - amazed as I thought Honda cars never rusted! Not worth repairing I think.
Factory-fitted alarm is now intermittent! The result is sometimes the car won't start, being starved of fuel due to the alarm inhibiting petrol because it 'thinks' the alarm is still on, except it isn't on. Incredibly frustrating, but with careful analysis, I think I've cracked it with judicious on-off switching of alarm.
I've had 7 years of fantastic motoring with this car, cost £12000 to purchase from a Honda main dealer, now worth nothing, so a depreciation of around £1,700 per year for a car that cost over £30,000 new is incredible.
The engine is an incredible piece of engineering and would last 300,000 miles without a doubt. The performance is breathtaking, given the large weight (I can't push it an inch and I could push the Vauxhall Carlton I previously owned!). It can manage this performance even with 5 people and full luggage.
The body work sadly is now letting me down. With rust getting serious, and expensive rear suspension replacement looming, I won't keep the car much longer only because of this - I'd keep it otherwise.
Although it appears a petrol guzzler with a 3.2 cc engine, driven with respect it can deliver not far off 30 miles per gallon - this would be distance driving without pushing things. My wife drives it occasionaly, and I doubt if she gets 15 miles per gallon, as she floors the pedal or brake randomly! I hate her driving it as not only is fuel wasted (you see the petrol gauge going down visibly!) but the tyres don't last with that treatment either - and they are very expensive at over £100 each.
You couldn't ask for more from a large saloon for the price. I wanted a Lexus 400 but couldn't afford one! I checked out second-hand Mercedess, but again couldn't get a new enough model for the price. The Vauxhall Senator was nearly going to be the choice - but I didn't want another Vauxhall and I wanted the top of the range, which always reminds me of police cars (especially the white ones!).
Overall, I've been extremely happy with this car.