I want to know the offset of your front and rear wheels 8.5X19 in front and 9.5X19 with a 245/275 tires if that makes a difference. If you have 10X19 the offset on those too since a local shop quoted me an estimate on that setup I don't feel comfortable with a 10" wheel in the back though...

 

For the 8.5 front look for something around +35 to +39, for the 9.5 rear look for a +42 to +46.

If you go with a 10" wheel in the rear the offset will need to be very close to +55.

I think the 10" wheels is too wide on the sedan. If you go 245/35 on the front, go with a 275/30 on the rear. This will keep the front and rear sizes close, albeit slightly undersized. A 245/40 and 275/35 would also work, but slightly oversized.

 

Thanks for the reply I actually ended up purchasing a set of 19" on eBay they are not staggard.