Simple answer make it illegal for anyone to smoke in a car, totally off topic I know, but they should, more dangerous than using a mobile phone
Ballcocks, how many cars have you seen with burnt seats, never seen any with a Bluetooth burnI disagree. I used to be a smoker and I'd say the act of lighting, smoking and putting one out became almost subconscious. Using a mobile (hands-free or not) demands at least part of your attention.
Why did rubber cambelts replace those old fashioned cam chains which (mostly) lasted a couple of hundred thousand miles? Progress, eh!
Nothing wrong with belts at all. Lighter, quieter, far less inertial losses. Change them when they should - and it isn't difficult - and they rarely cause issues. The move to chains is to make the engines more compact, and also to allow some tight packed installations on the basis that the engine will, hopefully, never need to be removed. Alas, BMW in particular have proven this is a bad idea.
Twin overhead cam engine. Introduced 1954 and was around till early 1994. Advanced stuff when it was introduced.There is quite a distance between the crankshaft and the camshaft of an overhead cam engine. Belts were an easier engineering solution when overhead camshafts became more common and also allowed for more refined engines. They won't give any problems if changed and tensioned correctly when they should be (along with tensioners, water pumps etc) and in the majority of engines it's pretty straightforward to do so.
There must be reasons for it but I'm not really sure the move back to chains is a good thing. It was fine with the short chain run with an OHV engine like in a Ford Anglia where the camshaft sat low in the block quite close to the crankshaft (and even though they stretched and rattled, the short chain meant it didn't usually come to any harm and the engine would have needed complete overhaul at pathetically low mileages by today's standards) but modern chains can and do give problems (mostly due to poor servicing I suspect). It will rattle and give impending notice of it's intention to wreck your engine but a chain is not as easy or as cheap to replace as a simple toothed belt.
Not always. My ex-wife brother in law has a Vauxhall Corsa, had it from new and regularly serviced. At 70 000 miles, the chain cambelt broke. Cost him £2500 to repair the engine. The Vauxhall dealer he bought it from refused all liability so I told him to take it up with Vauxhall head office for a full refund as it shouldn't have happened.
I had an S40 (not a V40) and it was like a tank and trouble free at 130,000 miles .
They are a great great car IMO.
If you can get one with under 80,000 miles, that would be a good purchase.
With yellowing headlight lens try t-cut or similar. It will take some elbow grease but they do come up clear again.