I used Hardie plank on my house. They make trim pieces too, not just the siding material. I used it on window trim, soffit (vented even) as well as fascia boards. I only installed it last year so I don't know about longevity, but it was installed because I too hate to paint.

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1992 500SEL 25K
1995 E320 40K
1995 SL600 120K
2002 JX8 Sport 43K
2005 Volvo S40 95K
2006 Isuzu NPR 304K (Frankencamper)
2007 Crown Victoria 150K
2014 Smart Electric 20K