335d isnt asa economical....and probably not as much fun as the petrol 335i.

the 335d is actually more economical.

And fun is subjective.
I'd like a 235d honestly.

Less, and heres why. The average driver puts about 15,000 miles on his or her car a year.

If your spending 3$ per gallon of gas (average CA cost), you can take 15,000 and devide it by its mpg. Then multiply that number by 3$.

So 335d: Yearly cost is roughly 1184$
335i: yearly cost is 1500$

which brings us to a total gas savins of 316$ per year if you own a 535d. Now, we know that the cost of a 335d is £2055 more than a 335i, which is roughly $2656 USD, and so we devide that number by $316-and we come with a total of 8.4 years to justify the cost of the 335d with gas savings-never mind interest rates that are higher in the diesel version as well.

Don't know if agree with that. It says that the 335i gets 30 mpg, which I think is a bit higher than normal. Most people at E90post are getting more like 22 or so. In real life scenario, a diesel should be more practical, thus why it is so popular in Europe

Depends on price of diesel vs. petrol fuel witch varies from country to country due to taxation policies. Also some countries actually offer incetives, tax reduction for diesel cars/owners.
Also, if petrol is 3 $ in USA, it costs between 4 $ to 9 $ across Europe. If it's a better choice people will go diesel.

In california, and probably the U.S., diesel is more expensive than petrol by about $.20 a gallon. Europe is different however, and diesel engines are better justified there.

If they are getting 22 mpg they are doing spirited driving and definitely wouldnt get the claimed 38 in the 335d. even so if it was just 22 mpg to 38 mpg the time to recover economically would be 4 years. Which also isnt including the higher interest rates on teh finance.

I drive my car like it's a petrol, so it drinks a lot. Imagine what would the petrol do to my wallet...

I'm surprised that the 335d is more expensive than the 335i. I though diesels are always cheaper.

Wrong! Nowadays, diesels are always more expensive! At least in my little country...

Diesels are always the most expensive. Always a couple of thousand $$$ more than the petrol variant when you buy the car, but clearly a lot cheaper in in long run