§ Ms Rosie WintertonTo ask the Secretary of State for the Environment, Transport and the Regions what is his estimate of the number of motor vehicles running on(a) leaded and (b) unleaded petrol in (i) 1997–98 and (ii) 1998–99. [43190]
§ Ms Glenda JacksonThe estimated number of vehicles (millions) is as follows:
1997 1998 Year ending 1999 Total using leaded petrol 7.7 6.5 5.3 Requiring leaded petrol1 3.8 3.0 2.6 Total using unleaded petrol 14.2 15.4 16.5 1 Number of vehicles included in the total using leaded petrol which require it for valve seat protection