Fernando Alonso has finished P38 overall in his first outing at the Daytona 24 Hours with the United Autosports team alongside Lando Norris and Phil Hanson.
Alonso qualified 13th in the No. 23 Ligier JS P217 on Thursday and took the start of the race, making up positions early on and even leading briefly while cars ahead pitted earlier.
However, there was success for the sister auto, with a line-up featuring Sky F1's Paul di Resta finishing a fine fourth despite their own reliability setbacks.
"[Daytona is] a very nice event, very nice driving this vehicle", Alonso said, before detailing some of the new things he learned in sports auto racing after spending his career to date in single-seaters. Unfortunately, we had too many issues that were out of our control, some unlucky situations like the puncture.
"The auto was good, maybe not as good as some teams out there but generally quite satisfied with what we achieved out there".
"Entering the night was quite a good part of the race, as the vehicle felt quite competitive, surprisingly, as it had never been like that before".
"There are many things that must come together for it to happen, and we are trying to do what we can", Alonso added.
"If and when I drive Le Mans, then it will be my second time driving at night, knowing how long to rest and sleep, etc.".
"I can drive prototypes better than I could two weeks ago", Alonso said.
Having been introduced to the spectators in attendance at the "roval" circuit, Alonso walked to the grid flanked by Brown, as the team prepared its two cars for the 24-hour assault.
Alonso is widely expected to join Toyota for Le Mans later this year, and has also been linked with a wider FIA World Endurance Championship program due to a lack of clashes with his F1 commitments.
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But the Spaniard has also expressed his determination to complete motorsport's Triple Crown of the Monaco GP, Indianapolis 500 and Le Mans. He has already won at Monaco.