What engines will the Williams F1 team use in 2010?

Suspend date: Thu 24th Dec 2009 11:59pm PST
Settlement date: Mon 19th Oct 2009 7:48am PST
Prediction cut-off: Predictions on this question after Sun 18th Oct 2009 11:10pm PST have been voided because they were made after the question could be settled

Initial likelihoods: Ferrari: 15%, Mercedes: 15%, BMW Sauber (or their replacements): 15%, Renault: 15%, Toyota: 10%, Cosworth: 15%, Other engine supplier: 15%

Action history:

Created Thu 15th Oct 2009 4:14am PST by f1_robbeh

Settlement requested Mon 19th Oct 2009 4:17am PST by pauliharman: To be settled as Cosworth:
http://www.autosport.com/news/report.php/id/79615

Settlement requested Mon 19th Oct 2009 5:01am PST by koester: http://www.autosport.com/news/report.php/id/79615

Cosworth will be the new supplier.

Suspended Mon 19th Oct 2009 7:43am PST by mrperfkt: Suspended pending settlement

Settled as 'Cosworth' Mon 19th Oct 2009 7:48am PST by mrperfkt: F1: Williams to use Cosworth engines in 2010
Williams will switch to Cosworth engines next season, AUTOSPORT has learned, after believing its prospects for success in 2010 are best served with the independent engine maker.autosport.com - Oct 19 3:12 AM

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Suspend date: Thu 24th Dec 2009 11:59pm PST
Settlement date: Mon 19th Oct 2009 7:48am PST
Prediction cut-off: Predictions on this question after Sun 18th Oct 2009 11:10pm PST have been voided because they were made after the question could be settled details