Jean-Eric Vergne was left to lament what could have been after encountering multiple problems in Spain.
The Toro Rosso got off to a good start around the Barcelona circuit on Sunday, however, understeer issues began to cost him time.
Added to that the 23-year-old's car was given a mighty wack on the rear when Sauber released Nico Hulkenberg as Vergne was coming down the pits.
And although he was able to continue, Vergne eventually parked his car after suffering delamination to his right rear tyre.
"After a good start, I then had a lot of understeer and we had to keep adding a lot of wing at each pit stop, which didn't really help," said the Frenchman.
"The strategy we adopted was the right one and even with a damaged floor and wing I was able to do good lap times.
"Yet again I was unlucky and I hope that stops soon, because as I was coming into the pits, Sauber did an unsafe release with Hulkenberg who drove into me and then I had a problem with a tyre, so it was one problem after another today."
His second successive DNF has left Vergne languishing in the standings in 15th place with just one point.
"I plan to have a better weekend in Monaco in two weeks time.
"I haven't lost hope for the future, given the performance we had shown earlier in the weekend and it's just such a shame as that good pace should have allowed us to score points today."
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