My 300D's Nardi has chrome spokes and black leather surround. I love it. I never liked the oversize OEM one.

You can find the hub is available at Nardi retailers. Do a web search.
At least it was 2-3 yrs ago.....

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1979 300D 220 K miles
1995 C280 109 K miles
1992 Cadillac Eldorado Touring Coupe 57K miles SOLD
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1979 240D 140Kmiles (bought for parents) *SOLD.
SAN FRANCISCO/(*San Diego)
1989 300SE 148 K miles *SOLD