Hi Bhanu, There lot of amazing places to explore on a road trip from Delhi. You can drive to Rishikesh, Dharamshala, Jaipur, Pushker, Nainital and many more. You can explore more destination in the trips attached below. Keep exploring!
Following are few suggested places:
1. Neemrana- 116kms
2. Amer, Jaipur- 247kms
3. Lansdowne-250kms- if you prefer hills
4. Kasauli -230 kms- hills
5. Nainital-294kms