[2] It is heavily based on the preceding E11T model; the main differences are bigger engine displacement, armoured cabin and upgraded gearbox.

In order to lower the operating costs and ensure availability of spares, large amount of the parts are standard components.

[7] In March 2004 Lithuania joined an alliance to support NATO in remote peacekeeping and humanitarian missions, which it dedicated to a specific unit in the Armed Forces.

Eight manufacturers from United States and Europe took part in the tender process; the three shortlisted producers were Iveco, MAN and Sisu.

[6] Lithuanian Armed Forces ordered 24 vehicles which were delivered between 2007–2009; the first units entered in service in 2008.

The Steyr VG 2000/300 2-step reduction gear contains longitudinal, lockable differential between the front and rear axles.

[1] The cabin is produced from Ruukki Ramor steel[8] and fitted with pressurised NBC protection system.

[4] The chassis is mine-protected; the pneumatic, electric and fuel systems are placed in protected areas, for example behind the cabin.

[8] The modular design enables a wide variety of superstructures and applications, such as hook loader and radar or launcher carrier.

[12] The E15TP is fitted with 26-metre MLC70 Leguan bridge and launching system produced by the German company KMW.

[7] On dry and stiff surface the vehicle is capable to climb 60% steep uphill and downhill forward and by reversing.

[1] A Sisu E13TP 8×8 rescue vehicle was delivered to Chinese Anhui JAC International in June 2014 as a part of a larger project.