MJ Car Sales Ltd is Authorised and Regulated by the Financial Conduct Authority. 630958 Finance Subject to status. Other offers may be available but cannot be used in conjunction with this offer. We work with a number of carefully selected credit providers who may be able to offer you finance for your purchase. Registered Companies House: - MJ Car Sales Ltd (04986967): Address: Park Road, Church Gresley, Swadlincote, Derbyshire, DE11 9QE .