That wing is rice, 100%. Just because a manufacturer decides to fit it doesn't make it any less ricey.
Can you point me to where Mercedes have published figures for the car with and without the wing. Otherwise, how do you know it actually does anything? Isn't it possible it was fitted to sell more cars to yuppies (the only people who buy Mercs) who think big wing must translate to big testicles?
A spoiler is a small, usually unangled thingy on the back edge of the car, and is used to alter the pressure gradient across the car, to reduce drag or reduce lift (not actually giving downforce as such). A wing is used to give downforce at the expense of a hell of a lot of drag. On road cars, which to be frank rarely get above 90mph, you get the drag but not the downforce (too slow to get much). Thus any downforce producing wing is rice. However, some 'fast' cars might use a wing to act as a spoiler (reducing body lift, and perhaps working with a diffuser to give real downforce) and a low downforce (and hence lowish drag) wing.
To be quite honest there isn't a real definition - it's personal opinion. But one mans rice might be another mans race. My rice threshold is very very low, and I believe my definition is more accurate than Nuse's (for example).
Remember, Rice actually helps sell cars - why do you think a lot of slow (they are really) hot-hatches have silly bodykits and white dials, and brushed aluminium trim - it's not to make the car faster, and doesn't cost much more than standard - it's pure rice. Designed to shout "look at me, I've got a shopping trolley with 18hp more than normal".
Rice - No need!
Can you point me to where Mercedes have published figures for the car with and without the wing. Otherwise, how do you know it actually does anything? Isn't it possible it was fitted to sell more cars to yuppies (the only people who buy Mercs) who think big wing must translate to big testicles?
A spoiler is a small, usually unangled thingy on the back edge of the car, and is used to alter the pressure gradient across the car, to reduce drag or reduce lift (not actually giving downforce as such). A wing is used to give downforce at the expense of a hell of a lot of drag. On road cars, which to be frank rarely get above 90mph, you get the drag but not the downforce (too slow to get much). Thus any downforce producing wing is rice. However, some 'fast' cars might use a wing to act as a spoiler (reducing body lift, and perhaps working with a diffuser to give real downforce) and a low downforce (and hence lowish drag) wing.
To be quite honest there isn't a real definition - it's personal opinion. But one mans rice might be another mans race. My rice threshold is very very low, and I believe my definition is more accurate than Nuse's (for example).
Remember, Rice actually helps sell cars - why do you think a lot of slow (they are really) hot-hatches have silly bodykits and white dials, and brushed aluminium trim - it's not to make the car faster, and doesn't cost much more than standard - it's pure rice. Designed to shout "look at me, I've got a shopping trolley with 18hp more than normal".
Rice - No need!