I have had the conti dws for a couple of months now in the 275/315/20 sizes and find them very good. Compared to my original 18" runflats and 20" yoko advan NRF they are more comfortable, quieter and grip just as well if not slightly better. I would definately replace with the same when the time comes.

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2009 135i M Sport Convertible
2008 X5 3.0si
2003 E46 318Ti M Sport Compact - donated to parents
2003 116i Hatchback - donated to brother
2002 316Ti - Sold
2000 318ci M Sport - Sold
1998 318i Sedan - Sold