Maybe but I love my 155.
Eventually bought fast road pads and drilled & grooved discs from EB Spares in Wiltshire.
The pads are the same pattern as the ones specified for the 155 V6 (Lucas calliper). EB Spares supplied V6 discs as neither of us knew which were the type fitted out of the two 284mm disc types they had in stock. As it turned out, the discs were the incorrect offset for the 16v.
I phoned EB Spares the next day and they said no problem, we'll send the correct discs out and I was to give the courier the V6 ones to return.
Top service from these lads and very quick delivery time (less than 12 hours) so a definite recommendation from me. Will definitely be ordering from them again.