Company car and car allowance in same tax year

I had a company car for the 1st 4 months of this tax year, and moved over to a car allowance for the remainder. How would I need to complete my efiling tax return?
Secondly, how will this affect my return?

You will need to complete both the company car section and the travel allowance section of the ITR12 tax return. Use the dates that you used the car and received the allowance for when asked. You can Register for TaxTim and begin answering our questions and we will be able to assist.