Err, I only managed to pay off the F02 as quickly as I did because (thanks to the COE) I hardly lost any money at all when I traded in my old E65. From start to end (2 years), I only lost less than $15K on the depreciation - and since that was also a fully paid off car, the difference really off-set the purchase price of the F02. And, Performance Motors also gave me a generous overtrade of close to $20K, which actually meant that I 'made' $5000 when I sold the E65 back to them. Possibly, they were chasing quota, so they were being so generous.
All in all, I was left with only an approx $60,000 loan to settle, after trade in, after overtrade, after deposit ($35,000), so I took out a one year in-house loan at 1.88%.
If I put the $60K in a time deposit, I would have earned only 0.8% interest. If I put the $60K in the stock market, the STI dropped 17% in 2011 - but in any case, I don't play stocks at all (absolute no no for me). So, I thought I'd 'earn' by clearing out the loan ASAP (so to give me more ammunition to buy the F13 mah).
But, honestly, the F13 will be a very different story - I don't have another car to trade in, and at nearly $385,000 - $35,000 deposit = $350,000 more to go, I'm definitely looking at a much longer loan this time!