input being skipped.

[learningcplusplus898]

when im entering data to this part of the program it runs fine but after i enter the vehicles rego number it will skip input for the fuel level. but if i enter only 1 character for the rego number i can enter fuel level.
rego numbers consist of numbers and letters so i made it a string.
i think the input is being skiped because if i enter in data that goes over the string size limit but i dont know alot about bits.

	char regoNumber[7]; //  <- from struct

	cout << "enter the vehicle's age ";
	cin >> temp.vehicleAge;

	while( temp.vehicleAge >= 9999 || temp.vehicleAge <= 1000 )
	{
		system("CLS");
		cout << "Error: age too short/too Long! must be 4 digits" << endl
			 << "if there is no age enter '1234' " << endl;
		cin >> temp.vehicleAge;
	}

	cout << "enter the rego number ";
	cin >> temp.regoNumber[6];
	cin.ignore();


	cout << "enter current fuel level  ";
	cin >> temp.fuelLevel;
	//cin.ignore();

	while( temp.fuelLevel > 100 && temp.fuelLevel < 1 )
	{
		cout << "ERROR: fuel level must be between 1 and 100" << endl
			  << "if fuel is at half enter 50, if full tank enter 100";
		cin >> temp.fuelLevel;
		cin.ignore();
	}

	cout << "enter price paid from supplier ";
	cin >> temp.priceBrought;

[learningcplusplus898]

found my error:


cin >> temp.regoNumber[6];