Remove the tires. Sell the tires to used tire shop for $15 or put them on craigslist.

Store the wheels.

Like most of us. There is a 123 out there that you don't know about that has your name on it and it might come with steel wheels.

__________________
Anders

1995 E300
2015 VW TDI Sportwagen 15K
1977 240D (197K)
2002 Subaru Legacy L Wagon (115k) (Wife's)
Gone but not forgotten:
2005 Buick LeSabre
1998 C230
1984 300D
1983 240D
1981 300SD
1974 240D
1974 Fiat 124 Spider
1968 Triumph TR250