my 172 (as is many others) was £190 to tax, my 225 is £190 to tax. As you say, the M5 is £175 to tax.
		
		
	 
Dont get that !!!!  :S 
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The enquiry is complete  
 The vehicle details for ***** are:  
Date of Liability  01 02 2007  
Date of First Registration  17 03 2002  
Year of Manufacture  2002  
Cylinder Capacity (cc)  1998CC  
CO2 Emissions  Not Available  
Fuel Type  Petrol  
Export Marker  Not Applicable  
Vehicle Status  Licence Due to Expire  
Vehicle Colour  SILVER  
Vehicle Type Approval   
The information contained on this page is correct at the time of enquiry.  
Vehicle Excise Duty Rate for vehicle     
6 Months Rate  £96.25  
12 Months Rate  £175.00