A court heard today that a terror group from Luton plotted to send a remote controlled toy car carrying a home made bomb under the gates of a Territorial Army centre.
Zahid Iqbal, 31, and Mohammed Sharfaraz Ahmed, 25, spoke about making the bomb using instructions in an al Qaida manual.
The manual was entitled "make a bomb in the kitchen of your mom - by the al Qaida chef".
Woolwich Crown Court was played covert recordings of the pair in which Iqbal suggests attaching the bomb to a remote controlled toy car and sending it under the gap of a gate to the TA centre.
The court heard that Iqbal told Ahmed: "I was looking and drove past like the TA centre on Marsh Road. At the bottom of their gate there's quite a big gap."
"If you had a little toy car it drives underneath one of their vehicles or something."
Four men have admitted terror charges.
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The Met Office has issued a yellow cold weather alert and there's the risk of snow in places later on Boxing Day.
Mostly dry and bright, but chilly. Frost tonight.
Most places will see bright or sunny spells through the day, but with a few showers around, especially during the morning.