This question is very hard, first of all, R2D2 was created by Ralph McQuarrie and he don't has any connection with BBC. The Daleks was created 14 years before(1963–1971). The r2d2 is a robot without flesh, for example. read more
R2-D2 doesn’t have much in common with Daleks other than having a mechanical body with a rounded top, and a rolling locomotion most of the time. Other than that, design-wise, personality-wise, and origin-wise, he’s a quite different character. read more
George Lucas’s creation of R2-D2 was influenced by Akira Kurosawa’s 1958 feature film The Hidden Fortress (USA release 1962), particularly Tahei and Matakishi, the two comic relief characters that serve as sidekicks to General Makabe. read more