[1] She was sired by Watt's stallion Belshazzar, who won several important races at York and Doncaster Racecourse and had some success at stud before being sold to Thomas Flintoff and exported to Tennessee.
Ridden by George Edwards she was among the leaders from the start and "won easy"[5] from the Duke of Portland's colt Vale of Belvoir and fifteen others.
[7] On 18 April 1839 Cara was one of only five fillies, from an original entry of twenty-three, to contest the 1000 Guineas Stakes over Newmarket's Ditch Mile course.
She started the second choice of the bettors, at odds of 7/4, with the Duke of Portland's Cænis being made 6/5 favourite after winning the Column Produce Stakes at the Craven meeting.
She ran in a £50 weight-for-age race over ten furlongs in which she finished last of the four runners behind Janus, a three-year-old colt owned by Lord Albemarle.