Light(er)weight wheels?

[BBOX]

So I've got the MKS with the stock 20's, and I'm considering doing something with the wheels and tires. One potential route is to simply have the stockers permachromed and get a good set of Conti DWS's on them and not have to deal with an extra set of wheels. I like the look of the stock 20's as I feel they fit the car's personality but I do want that chrome finish because all the other exterior surfaces are shiny, so I want the wheels to shine as well.

Something else I could consider is to go with aftermarket wheels and summer tires. I would still prefer chrome and if I could find something lighter in weight, that would be awesome. I've looked around and I know people seem to love the TSW wheels but I haven't really seen any I love for the Lincoln, plus I have no idea how they compare to the stock wheels in terms of weight.

So I guess it's two questions - one, does anyone know what the stock wheels weigh? And two, anyone have suggestions for some lightweight wheels?

[Lanson]

I was just writing about this.  We might need to come up with a comprehensive wheel weight thread since it would help all the car types here. 

This is just a smattering of wheels I know to be relatively light, just off the top of my head.  Relatively light to me means below 30 lbs a wheel.  You should take a wheel and tire off and measure it on a digital scale, and see what the combo weighs.  Then subtract the known weight of the tire and you're in the ballpark.  My guess is your stock 20" weighs 32 lbs or more.  My 2013 Flex 18" SEL wheel weighs 29 lbs.

Most custom 2 or 3 piece wheels in 20", big money though.
TSW rotary forged wheel offerings
Some Ace alloy wheels
Forgestar rotary forged wheels.  I would love to see a staggered F10 setup on an MKS that was lowered.  Also the CF10 and F14 are great. 
Some HHR wheels are relatively light
Enkei GTC-01, that's a darn light wheel, not sure of the offset you'll need but maybe it could be looked into.
Sean at Wheel Specialists Inc said he's got some new WTW brand (from Giovanna, Gianelle, etc.) wheels that are going to weigh about 26-27 lbs and come in black or silver, possibly you could get those chromed or permachromed I would guess.  Quite a few different styles.
I know the Blaque Diamond ULW series of wheels are relatively light, about 28 lbs for one of them, and it has a big bad chrome lip that looks good.

One thing you could do instead of go chrome is just go with a machined finish that's clear coated.  It won't have that ultra luster of chrome but it will be very clean and shiny.