This model from Horizon Hobby does not require you do do any assembly before driving it. No matter if you're an adult or a child, you'll probably find this enjoyable.
From Amazon
E-flite T-28 Trojan 1.2m BNF Basic with Smart EFL18350
Model Bau
E-Flite T-28 Trojan 1.2m BNF Basic with Smart A-E-Flite18350 A-EFL18350 A-EFL18350
eModels
E-flite T-28 Trojan 1.2m BNF Basic with Smart # EFL18350