For those of you who've already gotten your Optimas, may I know your FC range?

I think it may be too early to get a correct assessment.

You don't need very long to know. After a month or so, the FC will pretty much remain around there, plus minus 10%.

Had my K5 for a week. Only one problem occurred so far - Creaking sunroof. One that I feared, anybody having the same problem? There's a faint creaking noise from the sunroof whenever i go through uneven roads. After a bit of searching, it seems that Hyundai USA has issued a Technical Service Bulletin to lub the sunroof parts. I doubt that would be permanent. But better than nothing. FYI, the creaking noise doesn't occur when the roof is open.

Other than that, this is one heck of a good car, the interior feels solid (some said it looks like Waja but i'd suggest them to go see a doctor) , ride comfort is good (it would be even better if you swap for 17" rims and better tyres but that would spoil the look, so I could bear with it totally, huhuhu, i'm such a b*t*h  ), engine is powerful and smooth enough (I really cannot understand why some guai lows said the engine is not refine enough in their reviews, the difference on engine refinement between this car and a camry is pretty minimal for normal user like myself). The front and rear seats are spacious. Few petite female colleagues of mine sat in my car and they all had at least a foot between their legs and the front seats. I'm almost six feet and i find no problem with the back seat, but lets face it, how often do you carry passengers that are taller than six feet over long distance? Give and take lor.

However, few things that buyers must endure or sacrifice are the front passenger seating position and the small little windows and lack of front parking sensors.

The seating positions are low for both the front passenger and the driver. As a driver, i find it hard to estimate the front as i can't see beyond the bulge of the bonnet, especially when I park the car or driving/turning out of basement carparks. Can't push the driver seat too high as the sporty low roof line would not allow it. The front passenger is worst as the passenger seat does not come with vertical height adjustments, so all my petite wife could see the the dashboard and the sky. hahahaha. Not much of a problem, just get her a ipad to divert the attention.

The sporty roof line limits the size of the windows, it makes it hard to reach out for parking tickets or make toll payments. But i could accept and endure all those because the sporty design was what drawn me to this car anyway. Just step outside of the car and compare it to other jap cars and you'll see why. I was comparing Mondeo, Camry, Accord and K5, Mondeo and K5 wins. Camry and Accord immediately feels outdated.

I'm considering a front sensor, but wonders whether that'll void any warranties or not.

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Added on February 19, 2012, 10:24 amFew more things to add,

1) The HU can't connect to android phones properly. It is possible to connect but requires a few tries and good timing.
2) Can't lock the door from outside when the engine is running. A bit of inconvenience as I always lock the car doors when i leave my wife in the car. It's for safety.
3) The electric folding mirrors won't fold down automatically when i move the car.

How does the night time mood lighting look? Any pics?

Does anybody know the brand of the gas shock absorbers installed on the Kia Optima?

They were tuned by Sachs, dunno if supplied by them, but most likely you will not find brand as they are manafactured for OEM use

Are they twin tubes or mono tubes?

For those of you who've already gotten your Optimas, may I know your FC range?

Fuel consumption is claimed to be 13.2 kms/litre. This can be improved to 14.4 kms/litre when the Active Eco system is activated. Not sure how far this is true.

My FC on highway alone without ECO mode is 11.8km/L driving 140-160....

If driving on purely on city is around 8.8 - 9.8 km/L even with ECO mode on. My mileage is around 2000+ km.FC is so-so...not sure how to improve it.

My K5 sun roof doesn't have creaking sound btw.....

Plus minus 10% is about 7L of fuel. Quite alot actually. The FC will usually balance up after the 3,000km mark. Some cars may be earlier.

Whats your RPM at 110kmph and 160kmph?

RPM for 110 is around 2000 and 160 is below 4000 rpm.

That's not really accurate bro. If you are doing 110km/h @ 2,000rpm, then by right at 160km/h your rpm should only be 2,909rpm. This means that at 160km/h you were still accelerating

(2000/110) x 160 = 2,909rpm

I dont think there is a standard formula for RPM. My Vios does 2500 RPM at 110 and 4000RPM at 160. I  think it depends on the torque curve.

If you're in the highest gear and the torque converter is locked up, speed will commensurate with rpm.