Nothing.
The Accord Euro is indeed very European in the way it drives.
The suspension is firm, but never uncomfortable and endows the car with excellent handling. The steering is sharp and direct without being too light or over-assisted.
Honda's VTEC engines are always fast off the mark, but usually don't have the best in-gear acceleration. The Accord Euro is certinaly very different in this regard - the engine pulls strongly in virtually any gear, and can accellerate from 0 to 100 Km/H in less than 8 seconds, so the car is very quick all around.
Inside is very well equipped with dual climate control, powered and headed leather seats, 6 airbags and an electric glass sunroof and 6-disk in-dash CD changer which sounds great through the car's 6 speakers. The only thing really missing is a memory function for the drivers seat, but then again, most cars in this price range don't even have leather, let alone heated seats or most of the other features the Accord has.
There is also Honda's vehicle stability assist system which, along with the traction control, works effectively without being overly-intrusive and spoiling the fun.
On the road the Euro is very, very quiet and the engine can only really be heard when accelerating hard. The 6-speed manual is also a pleasure to use, with very short shift throws.
The Euro looks fantastic as well with an aggressive front, sleek lines and a dual exhaust (one left, one right) which makes the car look real mean from behind, and actually matches the performance.
Fully Agreed with the comments. I would say that to be really EURO a more sophisticated trip computer showing km/l, remaining km to go in a fuel tank would be really nice. The Radio has an excellent sound and Honda has used high quality (or above average) speakers on the Euro. It is selling almost 8 to 1 against the V6 (Made in Thailand) and there is a queue of up to 3 months depending on the mode you want. Add the trip computer, 17"wheel/tires and adjust the fog lights and you do have a 5 start vehicle here!
After driving the mazda 6,i talked myself into liking it, but when I drove the accord euro it was love at first drive, the power, the luxury, the refinement added up to a very complete and user friendly car. Yeah it cost a bit more, but who cares when you got to keep it for 3-4 years. The review was spot on, I didn't realise such a car existed for $34,000 drive away.