The £121 is right. Any commercial vehicle under 3,500kg, registered on or after March 2001 is now £121 for 6 months, £220 for 12 months as of 1st April 2013. Unless registered between March 2003 and December 2006, or January 2009 and December 2010 in which case it's £77 for 6 months/£140 for 12...