Should other provisions within my contract continue to be honoured during the notice period?
Yes, all your contractual provisions will apply if you are working through your notice period under normal working conditions.
Your employer may be able to require you to take any unused holiday while working through your notice. This will depend on the wording of your employment contract.
If you are not required to work your notice then the situation is more complex and it essentially depends on your contract of employment.
Additional benefits and payments which are in addition to your basic pay – such as the use of a company vehicle to do your job – may not apply if you are not required to work through your notice period. Whether or not they do will depend on the wording of your contract of employment.