Mines the same mid range!
Am dearly hoping some sound deadening will solve the trick.
My local shop stocks Ivanhoe for 17/roll. I did a search online and found only one retailer online, that sold Ivanhoe for 17.50 a roll as well dynamat 20/roll, and Dynamat extreme 27/roll.
If you do a search for 'sound deadening' (..I dont think I did the search using ebay, but I might have) you should turn up this same source. I didn't keep the link cos local shop even cheaper.
All are between about 1.15 & 1.3mm thick, so not alot in it really. I think dynamat claim that their extreme has 4 times the effect of their standard stuff. But both cost more and you only get 4 sq/ft compared to Ivanhoe which gives you 0.6 m2.
I was guna do as much as poss til realised how small sheets were and how cheap it isn't! Turns out the floor of the boot is already lined, and after I happened to have the panels off the doors for tinting the windows, I decided it wasn't even worth trying to install any in the doors. Most of noise will reverberate through floor anyway. Reckon at this will take 4-5 sheets (with bit of discount = £60). Could do without having to remove the interior, but should be straight forward, I hope.
, 17" Excite R01's (wolfrace)