trust me mate, after driving with the amount of lights here on the east coast US (mostly unsyncronised and with no road sensors to make them change when there's no other traffic) I'm dying for a roundabout- even the odd one with traffic lights on it!
Have they started putting lights on smaller one's? When I left the UK they were only usually seen on huge roundabouts in city areas.

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1993 320TE M104
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past:

1983 230E W123 M102
1994 E300D S124 OM606 (x2)
1967 250SE W108 M129
1972 280se 3.5 W108 M116
1980 280SE W116 M110
1980 350SE W116 M116
1992 300E W124 M103
1994 E280 W124 M104
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"music and women I cannot but give way to, whatever my business" -Pepys