This has been a load of entertainment and may get an award for oldest thread!
Here's my answer:
Buy her one of her own!
When I bought my (pristine) '81 SC, my wife loved it so much, that she asked if we could drive it to work everyday. (she drives it quite well too)
I told her that it is a 'weekend car' and not a 'daily driver' and if she wants to drive a Porsche to work everyday that she needs her own! So guess what? We find a sweet higher mileage '82 SC that was well taken care of and looked "pretty" and the price was right. Now I have the best looking garage in the neighborhood with 2 SC's !!! And most importantly my wife is the happiest woman in the neighborhood.
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Sara,1981 911SC Bamboo Beige (mine)
Penny,1982 911SC Wine Red Metallic-hers,Gone-both
2005 Ducati 749R & 2000 BMW K1200 LT
1994 HD Electra Glide Ultra Classic-sold
1991 Ducati 900SS-sold
& 1990 Ducati Paso 906-sold