From a sample of 140 respondents’ data on website quality, trust, personality attributes and purchase intentions under the motor vehicle ecommerce in Uganda was collected. Using the SMART PLS statistical application, we found that two paths were significant, ie trust to online purchase intentions which is defined by (Beta=. 540, Sig.<. 05) and the personality attributes to online Purchase which is defined by (Beta=. 181, sig.<. 05). In addition, the T statistics results of both paths were significant. Although website quality had weak prediction relationship with online purchase intentions, when trust was combined with website quality, personality attributes a predicting potential scoring of 0.456 was revealed. In line with prior revelations on consumer trust in ecommerce, the prominence of the trust variable on high value assets online purchases under the buyers based in sub-Saharan Africa augments the relevancy of honesty, reliability, openness, and kindness, trust facets in the theory of reasoned action, which fronts the fact that a person’s behavior is influenced by their attitudes towards the intended outcome and public opinion.