Coley's third at Wanganui on Saturday was his best finish of the year and when interviewed on the night, Caughey singled the young racer out for praise predicting he will be coming up strong next season.
Four-year Wanganui veteran Gerry Linklater looks back on his season with pride to claim the 400 series title.
With round results of third, fifth, first, second, second and fifth, Linklater stayed one step ahead of Piopio's Brett Thompson, while Warren Farr's victory at Shelter View on Saturday got him up for third.
But the big surprise of 2012-13 was Richard Murray's extraordinary come-from-behind series win in the Group A series two wins from the last two rounds in Wanaka and Wanganui being coupled with the self-destruction of Hamilton's Sam Newdick.
Newdick, with four straight round victories looked for all the money like sweeping the series, but third at Wanaka and then a shocking 12th at Shelter View left Murray just a faint chance. Having been consistent right up until Wanaka (finishing second, third, second and fifth), Murray's two victories are the only round wins of his career and wrapped up the championship.
Final Results
Suzuki Superboat Championship: 1. Peter Caughey (Canterbury); 2. Leighton Minnell (Wanganui); 3. Pat Dillon (Wanganui).
PSP Group A Championship: 1. Richard Murray (Wanganui); 2. Sam Newdick (Hamilton); 3. Paul Gaston (Queensland).
JetPro 400s: 1. Gerry Linklater (Wanganui); 2. Brett Thompson (Piopio); 3. Warren Farr (Taupo).