Vehicle engine size and running costs?

rev_henry

funkycoldribena wrote: »

http://www.autotrader.co.uk/classified/advert/201213459901700/sort/default/usedcars/engine-size-cars/5lplus/price-to/3000/postcode/rg142jg/page/4/radius/1501?logcode=p

YES! Overpriced though, its 21 years old and doesn't state mileage.

Strider590

^^ Why does it say 2006????

getmore4less

the issue with size MPG is that is has changed a lot over the last 10 years.

The same basic engine in a model goes though a few generations usualy improving consumption lowering emission.


Also there has been the tendancy to offer the same engine with multiple outputs so you can't just go ny the size.

I would think about your useage, ok low mileage so justa bout anything would do but have you ever thought I wish I had......... at any point. say heated seats/windscreen in the winter, exta space in the boot to carry something......

Strider590

^^ Not as much as you think, an engine's displacement is a measure of how much air it can suck into all of it's cylinders combined.

In ALL petrol vehicles, the fuel to air ratio has to be 14.7:1 (14.7 units of air to every 1 unit of fuel), any higher and your running lean, any lower and your running rich (both will damage an engine).

Do I really need to spell this out?

AlexisV

It's a different world now. You're used to driving an old Leyland motors runaround that was designed in the 70's.

A modern 1.4 won't use that much more petrol than your old 1.1 and be much more drivable. Weights have increased, but engines now give more bhp per litre.

You'll also gain much better grip and handling.

rev_henry

Strider590 wrote: »

^^ Why does it say 2006????

Presumably imported and first registered in the UK 2006. Quite what possessed anyone to import a 15 year old clapped out cadillac I have no idea.

Lum

Some people like them, and it's usually cheaper to import blindly and then fix anything, than to make several trips to a foreign country to inspect the car personally. Same reason I imported a 16 year old (though thankfully not clapped out) Nissan.

andrew-the-cat

How about a small turbocharged or twincharged engine. Most manufaturers seem to be going down that route now that people actually care about fuel economy and emissions.

A prime example is BMW, who used high capacity naturally aspirated engines. They are now downsizing the engines but adding turbochargers. This increases performance but reduces fuel consumption. E60 M5 has a 5.0 litre V10. 507bhp - 19mpg combined. F10 M5 has a 4.4 litre twin turbocharged V8. 555bhp - 28.5mpg combined.

rev_henry

andrew-the-cat wrote: »

How about a small turbocharged or twincharged engine. Most manufaturers seem to be going down that route now that people actually care about fuel economy and emissions.

A prime example is BMW, who used high capacity naturally aspirated engines. They are now downsizing the engines but adding turbochargers. This increases performance but reduces fuel consumption. E60 M5 has a 5.0 litre V10. 507bhp - 19mpg combined. F10 M5 has a 4.4 litre twin turbocharged V8. 555bhp - 28.5mpg combined.

The stats for the 535d are even more incredible. 0-60 in 5.3, 465 lb ft of torque (more than the M5 I believe) and 50mpg combined. HOW IS THAT POSSIBLE?! And, why would anyone buy an M5?

sj999

Depreciation is a huge cost in running a second hand car. If you don't do many miles buying a larger engined secondhand car could be cheaper then buying a newer smaller engined car.